Answer:
However, if the dataset is relatively small, every data point counts. In these situations, a missing data point means loss of valuable information. In any case, generally missing data creates imbalanced observations, cause biased estimates, and in extreme cases, can even lead to invalid conclusions.
It makes data analysis to be more ambiguous and more difficult.
Missing data is simply the same as saying that there are values and information that are unavailable. This could be due to missing files or unavailable information.
A dataset set with missing data means more work for the analyst. There needs to be a transformation in those fields before the dataset can be used.
Generally speaking missing data could lead to bias in the estimation of data.
A data scientist is a data expert who is in charge of data. He performs the job of data extraction, data analysis, data transformation.
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By Using the following schema, answer the following SQL queries and commands: Product(P_code.P_name, P_price, P_on_hand,vend_code) Vender(vend_code, vend_fname, vend_areacode, vend_phone) 1- find the venders names who sell products in TN-5 area and their names include "dan". 2- find the code, name and vender code of product that has price between 1500S and 2500S and the product that has price between 48005 and 5600S. 3- Find the name, and code of venders who had 5 microwaves that has price less than 3500S. 4- Find the phone numbers of venders who sell Televisions. 5- Delete the records of venders who their first name is 'smith'
Explanation:
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3. Using Assume the following list of keys: 36, 55, 89, 95, 65, 75, 13, 62, 86, 9, 23, 74, 2, 100, 98 This list is to be sorted using the quick sort algorithm as discussed in this chapter. Use pivot as the middle element of the list. a. Give the resulting list after one call to the function partition. b. What is the size of the list that the function partition partitioned
Answer:
a. 36, 55, 13, 9, 23, 2, 62, 86, 95, 65,74, 75, 100, 98, 89
b. 15
Explanation:
Discuss the OSI Layer protocols application in Mobile Computing
Answer:
The OSI Model (Open Systems Interconnection Model) is a conceptual framework used to describe the functions of a networking system. The OSI model characterizes computing functions into a universal set of rules and requirements in order to support interoperability between different products and software.
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Write a program that randomly chooses among three different colors for displaying text on the screen. Use a loop to display 20 lines of text, each with a randomly chosen color. The probabilities for each color are to be as follows: white 30%, blue 10%, green 60%. Suggestion: Generate a random integer between 0 and 9. If the resulting integer falls in the range 0 to 2 (inclusive), choose white. If the integer equals to 3, choose blue. If the integer falls in the range 4 to 9 (inclusive), choose green. Test your program by running it ten times, each time observing whether the distribution of line colors appears to match the required probabilities.
INCLUDE Irvine32.inc
.data
msgIntro byte "This is Your Name's fourth assembly extra credit program. Will randomly",0dh,0ah
byte "choose between three different colors for displaying twenty lines of text,",0dh,0ah
byte "each with a randomly chosen color. The color probabilities are as follows:",0dh,0ah
byte "White=30%,Blue=10%,Green=60%.",0dh,0ah,0
msgOutput byte "Text printed with one of 3 randomly chosen colors",0
.code
main PROC
;
//Intro Message
mov edx,OFFSET msgIntro ;intro message into edx
call WriteString ;display msgIntro
call Crlf ;endl
call WaitMsg ;pause message
call Clrscr ;clear screen
call Randomize ;seed the random number generator
mov edx, OFFSET msgOutput;line of text
mov ecx, 20 ;counter (lines of text)
L1:;//(Loop - Display Text 20 Times)
call setRanColor ;calls random color procedure
call SetTextColor ;calls the SetTextColor from library
call WriteString ;display line of text
call Crlf ;endl
loop L1
exit
main ENDP
;--
setRanColor PROC
;
; Selects a color with the following probabilities:
; White = 30%, Blue = 10%, Green = 60%.
; Receives: nothing
; Returns: EAX = color chosen
;--
mov eax, 10 ;range of random numbers (0-9)
call RandomRange ;EAX = Random Number
.IF eax >= 4 ;if number is 4-9 (60%)
mov eax, green ;set text green
.ELSEIF eax == 3 ;if number is 3 (10%)
mov eax, blue ;set text blue
.ELSE ;number is 0-2 (30%)
mov eax, white ;set text white
.ENDIF ;end statement
ret
setRanColor ENDP
Select the scenario that describes a top-down approach to data warehouse design.
Cathy’s Cards and Gifts, which has three stores, creates data marts for its sales, marketing, and delivery departments to study the possibility of establishing a new store.
Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
Cynthia’s Florals, which is dealing with debt, creates new data marts for the service, delivery, and sales departments to develop a strategy to stay in business.
Connor’s Meat Market, which just opened, creates data marts to track the sale of each of the following meats: beef, pork, lamb, and fish.
Answer:
Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
The scenario defines a top-down approach to data warehouse design as "Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed".
What is a top-down approach to data warehouse design?In the "Top-Down" method system, a data warehouse exists defined as a subject-oriented, time-variant, non-volatile, and integrated data storage for the entire business data from various sources exist validated, reformatted, and saved in a normalized (up to 3NF) database as the data warehouse.
Therefore, the correct answer is option b) Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
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You are consulting with another medium sized business regarding a new database they want to create. They currently have multiple normalized source databases that need consolidation for reporting and analytics. What type of database would you recommend and why
Answer:
The enormous amount of data and information that a company generates and consumes today can become an organizational and logistical nightmare. Storing data, integrating it and protecting it, so that it can be accessed in a fluid, fast and remote way, is one of the fundamental pillars for the successful management of any company, both for productive reasons and for being able to manage and give an effective response to the customers.
Good big data management is key to compete in a globalized market. With employees, suppliers and customers physically spread across different cities and countries, the better the data is handled in an organization, the greater its ability to react to market demand and its competitors.
Databases are nowadays an indispensable pillar to manage all the information handled by an organization that wants to be competitive. However, at a certain point of development in a company, when growth is sustained and the objective is expansion, the doubt faced by many managers and system administrators is whether they should continue to use a database system, or if they should consider the leap to a data warehouse. When is the right time to move from one data storage system to another?
The advantage of returning a structure type from a function when compared to returning a fundamental type is that a. the function can return multiple values b. the function can return an object c. the function doesn’t need to include a return statement d. all of the above e. a and b only
Answer:
The advantage of returning a structure type from a function when compared to returning a fundamental type is that
e. a and b only.
Explanation:
One advantage of returning a structure type from a function vis-a-vis returning a fundamental type is that the function can return multiple values. The second advantage is that the function can return can an object. This implies that a function in a structure type can be passed from one function to another.
Compute the acceleration of gravity for a given distance from the earth's center, distCenter, assigning the result to accelGravity. The expression for the acceleration of gravity is: (G * M) / (d2), where G is the gravitational constant 6.673 x 10-11, M is the mass of the earth 5.98 x 1024 (in kg) and d is the distance in meters from the earth's center (stored in variable distCenter).
#include
using namespace std;
int main() {
double G = 6.673e-11;
double M = 5.98e24;
double accelGravity;
double distCenter;
cin >> distCenter;
/* Your solution goes here */
cout << accelGravity << endl;
return 0;
}
Answer:
Replace /* Your solution goes here */ with the following expression
accelGravity = (G * M) / (distCenter *distCenter );
Explanation:
Required
Complete the code
The equivalent expression of (G * M) / (d^2) is:
(G * M) / (distCenter *distCenter );
The expression must be stored in accelGravity.
So, we have:
accelGravity = (G * M) / (distCenter *distCenter );
T
N
O
?
You can insert only the row
only to
True or false
false
Explanation:
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have a great day
Answer:
false
Explanation:
Analyzing the role of elements in audio editing and Video
+ analyzing the role of the visual element in Video + analyzing the role of text factor
+ analyzing the role of the audio factor
+ analyzing the role of the transfer scene
+ analysing the role of the audio visual effects
Answer:
Analyzing the role of elements in audio editing and Video
+ analyzing the role of the visual element in Video + analyzing the role of text factor
+ analyzing the role of the audio factor
+ analyzing the role of the transfer scene
+ analysing the role of the audio visual effect
Write a program named lastname_firstname_cities.py that works with information about large cities. Your program will open the cities.txt downloadfile. Each line in the file has the name of a city, its country, and its population. The first few lines of the file look like this:
Answer and Explanation:
Open your text editor and open new file. Save new file file as lastname_firstname_cities.py. The program will open the file cities.txt downloadfile hence :
dfile= open(cities.txt, "r")
If we write this into our lastname_firstname_cities.py file it will open our cities.txt downloadfile in read mode and text mode(by default unless we specify binary mode which is for images)
2.13 LAB: Branches: Leap Year
A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to rotate around the sun. To account for the
difference in time, every 4 years, a leap year takes place. A leap year is when a year has 366 days: An extra day, February 29th. The
requirements for a given year to be a leap year are:
1) The year must be divisible by 4
2) If the year is a century year (1700, 1800, etc.), the year must be evenly divisible by 400
Some example leap years are 1600, 1712 and 2016.
Write a program that takes in a year and determines whether that year is a leap year.
Ex If the input is
1712
the output is
1712 13 leap year.
Ex If the nouts
1913
the outoutis
1913 not leap year.
Written is Coral Language
Answer:
integer userInput
userInput = Get next input
if userInput % 400 == 0
Put userInput to output
Put " is a leap year" to output
else
if userInput % 4 == 0
Put userInput to output
Put " is a leap year" to output
else
Put userInput to output
Put " is not a leap year" to output
Explanation:
I don't know what is so special about Coral but here we go. I couldn't find and IDE that supported Coral so I just used their Coral simulator on their website. The first if statement on line 5 determines if the number is divisible by 400. If so, the leap year is on a century year e.g 1900 1800. If not, the else statement will be executed and the second if statement will execute. If the number is divisible by 4, it is a leap year. If not, the else statement gets executed in which case the number was not a century leap year or a leap year. After that the program terminates.
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2. Which property is used for hiding text of the textbox?
a) Password Char b) Text Char c) Char Password d) Pass Char
Answer:
password char
Explanation:
The password char property allows the text being written in the textbox to be hidden in the form of dots or stars. As such the user entering the password is secure, as no one nearby can know the password by watching the texts.
tinh S(n) = 1+2+3+.....+n
Answer:
-1/12
Explanation:
[tex]\sum_{k=0}^{k=n} k = \frac{n(n+1)}{2}\\[/tex]
look up the derivation by Srinivasa Ramanujan for a formal proof.
How to prepare and draw a corresponding flowchart to compute the sum and product of all prime numbers between 1 and 50
Answer:
Create boxes with the following content
Initialize sum to 0, product to 1 and number to 1Check if number is a prime. If yes, update sum += number and product *= numberIncrease number by 1If number is <= 50, go back to "check" block.The check block has a diamond shape.
At the "yes" branch of the check block, you can create separate blocks for updating the sum and the product.
Connect the blocks using arrows.
Indicate the start and the end of the flow using the appropriate symbols.
The block to check if a number is a prime you could further decompose into the steps needed to do such a check.
e) Point out the errors( if any) and correct them:-
class simple
{
inta,b,c;
double sumNumber
{
int d = a + b + c;
double e = d/5.6;
return e;
}
void show Number()
{
a = 10, b = 20, c=5;
System.out.println(d);
double f = sumNumber(a,b,c);
System.out.print(e);
}
}
Explanation:
double e-d/5.6;is wrong it should return to c
How to use the AI System ?
ANSWER:
· New artificial intelligence systems are being developed to help teachers administer more effective testing that could uncover some of these often-hidden conditions. Once they can be properly identified, educators can tap into the resources available for a learning disability. Students can use AI to give reliable feedback.
What are some 5 constraints in using multimedia in teaching
Answer:
Explanation:
Technological resources, both hardware and software
Technological skills, for both the students and teacher
Time required to plan, design, develop, and evaluate multimedia activities
Production of multimedia is more expensive than others because it is made up of more than one medium.
Production of multimedia requires an electronic device, which may be relatively expensive.
Multimedia requires electricity to run, which adds to the cost of its use
There are constraints in using multimedia in teaching; The Technological resources, both hardware and software Also, Technological skills, for both the students and teacher
What is a characteristic of multimedia?
A Multimedia system has four characteristics and they are use to deliver the content as well as the functionality.
The Multimedia system should be be computer controlled. The interface is interactive for their presentation and lastly the information should be in digital.
There are constraints in using multimedia in teaching;
The Technological resources, both hardware and software
Also, Technological skills, for both the students and teacher
Since Time required to plan, design, develop, and evaluate multimedia activities
The Production of multimedia is more expensive than others because it is made up of more than one medium.
The Production of multimedia requires an electronic device, which may be relatively expensive.
The Multimedia requires electricity to run, which adds to the cost of its use.
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During the data transmission there are chances that the data bits in the frame might get corrupted. This will require the sender to re-transmit the frame and hence it will increase the re-transmission overhead. By considering the scenarios given below, you have to choose whether the packets should be encapsulated in a single frame or multiple frames in order to minimize the re-transmission overhead.
Justify your answer with one valid reason for both the scenarios given below.
Scenario A: Suppose you are using a network which is very prone to errors.
Scenario B: Suppose you are using a network with high reliability and accuracy.
The packets would be encapsulated in single frame in scenario A. In scenario B, it should be in multi frames.
In scenario A, given that this network has been said to be prone to error, the packets should be encapsulated in single frames.
The reason for this is because, using a single frame helps to decrease error. We have been told already that it is prone to error. If you use the multi frame, there would be very high likelihood of errors occurring.
In scenario B, given that the network is accurate and very reliable, the best packet is the multi frame.
It would give a quicker transmission and the likelihood of errors occurring is also low.
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Discuss the OSI Layer protocols application in Mobile Computing
Answer:
The OSI Model (Open Systems Interconnection Model) is a conceptual framework used to describe the functions of a networking system. The OSI model characterizes computing functions into a universal set of rules and requirements in order to support interoperability between different products and software.
PartnerServer is a Windows Server 2012 server that holds the primary copy of the PartnerNet.org domain. The server is in a demilitarized zone (DMZ) and provides name resolution for the domain for Internet hosts.
i. True
ii. False
Answer:
i. True
Explanation:
A Domain Name System (DNS) can be defined as a naming database in which internet domain names (website URLs) are stored and translated into their respective internet protocol (IP) address.
This ultimately implies that, a DNS is used to connect uniform resource locator (URL) or web address with their internet protocol (IP) address.
Windows Server 2012 is a Microsoft Windows Server operating system and it was released to the general public on the 4th of September, 2012, as the sixth version of the Windows Server operating system and the Windows NT family.
PartnerServer is a Windows Server 2012 server that was designed and developed to hold the primary copy of the PartnerNet dot org domain.
Typically, the server is configured to reside in a demilitarized zone (DMZ) while providing name resolution for the domain of various Internet hosts.
In order to prevent a cyber attack on a private network, end users make use of a demilitarized zone (DMZ).
A demilitarized zone (DMZ) is a cyber security technique that interacts directly with external networks, so as to enable it protect a private network.
An engineer is designing an HTML page and wants to specify a title for the browser tab to display, along with some meta data on what tools the page should use. These items would best fit in which of the following sections
a. The element
b. The element
c. The
element
d. The
An HTML is made up of several individual tags and elements such as the head, body. form, frame and many more.
In an HTML page, the meta element and the title element are placed in the head element.
An illustration is as follows:
< head >
< title > My Title < /title >
< meta charset="UTF-8" >
< / head >
The head element contains quite a number of elements and tags; some of them are:
metatitle stylescriptbaseAnd so on.
Hence, in order to use a meta-data element, the meta element has to be placed within the head element.
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Code Example 17-1 class PayCalculator { private: int wages; public: PayCalculator& calculate_wages(double hours, double wages) { this->wages = hours * wages; return *this; } double get_wages() { return wages; } }; (Refer to Code Example 17-1.) What coding technique is illustrated by the following code? PayCalculator calc; double pay = calc.calculate_wages(40, 20.5).get_wages(); a. self-referencing b. function chaining c. dereferencing d. class chaining
Answer:
The answer is "Option b".
Explanation:
Function chaining is shown by this code, as the functions are called one after the other with one statement. Whenever you want to call a series of methods through an object, that technique is beneficial. Just because of that, you may give the same effect with less code and have a single given value only at top of the leash of operations.
What is the iterative procedure of recursive and nonrecursive?
Answer:
nonrecursive
Explanation:
Write a program that repeatedly accepts as input a string of ACGT triples and produces a list of the triples and the corresponding amino acids, one set per line. The program will continue to accept input until the user just presses ENTER without entering any DNA codes.
Answer:
Explanation:
The following code is written in Python. I created a dictionary with all the possible gene combinations and their corresponding amino acids. The user then enters a string. The string is split into triples and checked against the dictionary. If a value exists the gene and amino acid is printed, otherwise an "Invalid Sequence" error is printed for that triple. The program has been tested and the output can be seen in the attached image below.
def printAminoAcids():
data = {
'TTT': 'Phe', 'TCT': 'Ser', 'TGT': 'Cys', 'TAT': 'Tyr',
'TTC': 'Phe', 'TCC': 'Ser', 'TGC': 'Cys', 'TAC': 'Tyr',
'TTG': 'Leu', 'TCG': 'Ser', 'TGG': 'Trp', 'TAG': '***',
'TTA': 'Leu', 'TCA': 'Ser', 'TGA': '***', 'TAA': '***',
'CTT': 'Leu', 'CCT': 'Pro', 'CGT': 'Arg', 'CAT': 'His',
'CTC': 'Leu', 'CCC': 'Pro', 'CGC': 'Arg', 'CAC': 'His',
'CTG': 'Leu', 'CCG': 'Pro', 'CGG': 'Arg', 'CAG': 'Gln',
'CTA': 'Leu', 'CCA': 'Pro', 'CGA': 'Arg', 'CAA': 'Gln',
'GTT': 'Val', 'GCT': 'Ala', 'GGT': 'Gly', 'GAT': 'Asp',
'GTC': 'Val', 'GCC': 'Ala', 'GGC': 'Gly', 'GAC': 'Asp',
'GTG': 'Val', 'GCG': 'Ala', 'GGG': 'Gly', 'GAG': 'Glu',
'GTA': 'Val', 'GCA': 'Ala', 'GGA': 'Gly', 'GAA': 'Glu',
'ATT': 'Ile', 'ACT': 'Thr', 'AGT': 'Ser', 'AAT': 'Asn',
'ATC': 'Ile', 'ACC': 'Thr', 'AGC': 'Ser', 'AAC': 'Asn',
'ATG': 'Met', 'ACG': 'Thr', 'AGG': 'Arg', 'AAG': 'Lys',
'ATA': 'Ile', 'ACA': 'Thr', 'AGA': 'Arg', 'AAA': 'Lys'
}
string = input("Enter Sequence or just click Enter to quit: ")
sequence_list = []
count = 0
gene = ""
for x in range(len(string)):
if count < 3:
gene += string[x]
count += 1
else:
sequence_list.append(gene)
gene = ""
gene += string[x]
count = 1
sequence_list.append(gene)
for gene in sequence_list:
if gene.upper() in data:
print(str(gene.upper()) + ": " + str(data[gene.upper()]))
else:
print(str(gene.upper()) + ": invalid sequence")
printAminoAcids()
cloud offers better protection compare to on premise?
Why is cloud better than on-premise? Dubbed better than on-premise due to its flexibility, reliability and security, cloud removes the hassle of maintaining and updating systems, allowing you to invest your time, money and resources into fulfilling your core business strategies.
The security of the cloud vs. on-premises is a key consideration in this debate. Cloud security controls have historically been considered less robust than onprem ones, but cloud computing is no longer a new technology. . A company running its own on-premises servers retains more complete control over security.
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Write a program that asks the user to enter in a username and then examines that username to make sure it complies with the rules above. Here's a sample running of the program - note that you want to keep prompting the user until they supply you with a valid username:
user_in = input ("Please enter your username: " )
if user_in in "0123456789":
print ("Username cannot contain numbers")
elif user_in in "?":
print ("Username cannot continue special character")
else:
print (" Welcome to your ghetto, {0}! ".format(user_in))
Type the correct answer in the box. Spell all words correctly.
Which testing requires coding the test cases into a scripting language?
testing requires coding the test cases into a scripting language.
Answer:
sorry I forgot it
Explanation:
because I am now in a last position
What do you do if your computer dies/malfunctions? Reboot (Restart) Shut Down Recovery CD and Recover your system Call a person to fix it
Answer:
Restart
Explanation:
Simply I may restart my pc if it dies/malfunctions. I'll not restart immediately, I'll wait for an hour and do restart my computer. If it doesn't work then maybe I'll Call a person to fix it.
I connected to an external hard drive to transfer some photos from my vacation. When I try to drag the photo, it bounces right back and does not transfer. What is the likely cause of this issue?
a. hard drive is full
b. photos were taken in a different country
c. USB port is broken
d. the file structure of the 2 hard drives are not compatible
The answer is D, What is the likely cause of this issue is that the file structure of the two hard drives are not compatible.
The file structure or file system, of a hard drive, tells the disk how to read, write and store information on the drive. Some file systems do not allow the disk to store any files and often do not display error messages. If we try to drag a file onto a hard drive with this kind of file structure, the action would simply not be performed. This can be fixed by formatting the disk partition into a new file system.
Option B states that the issue may be that the photos were taken in a different country. This is not the cause of the problem because regardless of where the pictures are taken, they are all stored in common formats such as:
JPEGPNGJFIFAny external hard drive capable of storing images will have the ability to receive files in these formats as well as many other image formats. For this reason, option B is False.
The question states that you were able to connect the external Hard drive and drag files onto it, though unsuccessfully. This tells us that the USB port is working as intended, if it were not working, it would not display the Hard drive onto the computer and we would not be able to drag files to it. Therefore, option C is false
Insufficient Hard drive storage space is a common issue in not being able to transfer files between hard drives. However, if this were the case, the user would be shown a message displaying the error. The message may look like:
"Insufficient space on the disk.""The Disk is full.""Not enough memory to complete this action"The exact wording may vary depending on the operating system in use. Since the question states that the files simply "bounces back" without an error message displaying, we can infer that option A is false.
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