Explain the effects of disposing electronic equipments to the environment ​

Answer:

(a) [tex]\bar x_1 = 43.7[/tex]     [tex]\bar x_2 = 30.25[/tex]

(b) [tex]\sigma_1 = 16.93[/tex]    [tex]\sigma_2 = 7.14[/tex]

(c) Smoking increases the time to fall asleep

Explanation:

Solving (a): The sample mean of each group

Mean is calculated as:

[tex]\bar x = \frac{\sum x}{n}[/tex]

So, we have:

Smokers

[tex]n_1= 12[/tex] and

[tex]\bar x_1 = \frac{69.3 +56.0+ 22.1 +47.6+ 53.2+ 48.1+ 52.7 +34.4+ 60.2 +43.8 +23.2 +13.8}{12}[/tex]

[tex]\bar x_1 = \frac{524.4}{12}[/tex]

[tex]\bar x_1 = 43.7[/tex]

Non Smokers

[tex]n_2 = 15[/tex] and

[tex]\bar x = \frac{28.6 +25.1 +26.4 +34.9 +28.8 +28.4 +38.5 +30.2 +30.6 +31.8 +41.6 +21.1 +36.0 +37.9 +13.9}{15}[/tex]

[tex]\bar x_2 = \frac{453.8}{15}[/tex]

[tex]\bar x_2 = 30.25[/tex]

Solving (b): The standard deviation of each group

This is calculated as:

[tex]\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n-1}}[/tex]

For smokers

[tex]n_1= 12[/tex]

So:

[tex]\sigma_1 = \sqrt{\frac{(69.3 -43.7)^2+(56.0-43.7)^2+..........+(13.8-43.7)^2}{12-1}}[/tex]

[tex]\sigma_1 = \sqrt{\frac{3152.04}{11}}[/tex]

[tex]\sigma_1 = \sqrt{286.5491}[/tex]

[tex]\sigma_1 = 16.93[/tex]

For non-smokers

[tex]n_2 = 15[/tex]

So:

[tex]\sigma_2 = \sqrt{\frac{(28.6 -30.25)^2+(25.1 -30.25)^2+..........+(13.9 -30.25)^2}{15-1}}[/tex]

[tex]\sigma_2 = \sqrt{\frac{713.2575}{14}}[/tex]

[tex]\sigma_2 = \sqrt{50.9469}[/tex]

[tex]\sigma_2 = 7.14[/tex]

Solving (c): Impact of smoking on time to sleep

In (b), we have:

[tex]\sigma_1 = 16.93[/tex] --- smokers

[tex]\sigma_2 = 7.14[/tex] --- non-smokers

Smokers have larger standard deviation (i.e. large variability) than non-smokers. This means that smokers require more time to fall asleep.

Answer: D. to define, demonstrate, or instruct.

Explanation:

Persuasive speaking is the form of speaking that we usually engage in. It is used to convince people. As individuals, we usually engage in persuasive speaking. We argue about different things and try to convince the other person to agree with us.

Th goals of persuasive speaking is to motivate to action, to change attitudes, beliefs, or values and to strengthen or weaken attitudes, beliefs, or values.

It should be noted that the goal of persuasive speaking isn't to to define, demonstrate, or instruct. Therefore, the correct option is D.

Answer:

Simple Answer: D

Answer:

2. Insert

3. Links

4. Add

6. Advanced

Explanation:

HTML is an acronym for hypertext markup language and it is a standard programming language which is used for designing, developing and creating web pages.

A website refers to the collective name used to describe series of web pages linked together with the same domain name.

On the other hand, a webpage is the individual HTML document (single page) that makes up a website with a unique uniform resource locator (URL).

A bookmark can be defined as a placeholder or saved shortcut for a webpage and for future reference. Thus, it avails an end user the ability to quickly access a bookmarked webpage by automatically directing the web browser to the webpage.

Basically, the steps for creating a bookmark are;

1. The insertion point of the webpage should be placed at the point where the bookmark should appear.

2. Click the "INSERT" tab.

3. In the "LINKS" group, click "Bookmark"

4. When a dialog box opens, the bookmark should be named with a specific title, and then click "ADD"

5. To see bookmarks within the HTML document, you should go to Backstage view and click on "Options"

6. In ADVANCED, select Show Bookmarks to have them appear as a locked cursor within the HTML document.

Answer:

public class CountSpaces

{

   public static void main(String[] args)

   {

       String quote = "The concept of infinity is meaningless inside of an insane human mind.";

       int nrSpaces = calculateSpaces(quote);

       System.out.println("Nr spaces in your quote is " + nrSpaces);

   }

   public static int calculateSpaces(String inString)

   {

       int count = 0;

       for (int i = 0; i < inString.length(); i++) {

           if (inString.charAt(i) == ' ') {

               count++;

           }

       }

       return count;

   }

}

Explanation:

In this example there is only one class, and since all methods are static the true concept of the class is not even being used.

Answer:

what should be basically be done in this question?

Answer:

wear a mask use hand sanitizer dont get in contact with anyone between 6 feet

Explanation:

Answer:

C."How to Become a Dentist." Occupational Outlook Handbook. Bureau of Labor Statistics and US Department of Labor, 29 March 2012. Web. 1 May 2013.

Explanation:

When citing an online publication without a known author, the title of the article is first stated and encapsulated in italics. This is then followed by the name of the website or book. The organization responsible for the write-up is indicated. A comma separates the name of the organization and the date when the article was written. 'Web' is written to show that the material was obtained online. Finally, the date that tells when the article was retrieved is noted.

This guideline applies to both the Modern Language Association and the American Psychological Association citation styles.

Answer:

Identify the correct way to cite the Occupational Outlook Handbook's "How to Become a Dentist" web page. awser:C Explanation: How to Become a Dentist." Occupational Outlook Handbook. Bureau of Labor Statistics and US Department of Labor, 29 March 2012. Web. 1 May 2013.

Answer:

Versatility refers to the capability of a computer to perform different kinds of works with same accuracy and efficiency.

Explanation:

thank me later

Versatility refers to the effort or ability of a computer to carry out different kinds of works and it is done that is done on the same level of accuracy and efficiency.

Computer is known to be a machine that is said to be versatile machine as it is made up of a lot of field and also involves in Multi-tasking.

Therefore, Versatility refers to the effort or ability of a computer to carry out different kinds of works and it is done that is done on the same level of accuracy and efficiency.

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Answer:

1.

a.true

b.false

2a internal

Explanation:

hope it helps you

Answer:

algorithm.

Explanation:

An algorithm can be defined as a standard formula or procedures which comprises of set of finite steps or instructions for solving a problem on a computer. The time complexity is a measure of the amount of time required by an algorithm to run till its completion of the task with respect to the length of the input.

Furthermore, the processing symbols and their functions used in developing an algorithm are oval (start or stop), diamond (decision-making), circle (on-page connector), parallelogram (input and output), rectangle (calculation), arrow (flow or direction) and pentagon (off-page connector).

Some of the characteristics of an algorithm include the following;

I. An algorithm can be written using pseudocode. A pseudocode refers to the description of the steps contained in an algorithm using a plain or natural language.

II. An algorithm can be visualized using flowcharts. A flowchart can be defined as a graphical representation of an algorithm for a process or workflow.

In conclusion, an algorithm is a sequence of precise instructions which result in a solution​ for solving problems using a computer system.

Answer:

Emails designed to trick users into sharing private information.

Explanation:

if that is a multiple choice question and the other sentences is the answer choices.

Solution :

Digital recording may be defined as the preservation of an audio or some visual signals like the series of a binary numbers which can be stored on a magnetic tape or on an optical disc or some other digital storage media.

Some of the best practices for doing digital recording are :

1. We should always take permission from those who are being recorded. It is not right to shoot others without their permission. It is against the right to privacy.

2. We should record audio at about 44.1 kHz/16 bit in an uncompressed wave format.

3. A High quality MP3 (192 kbps or higher) is often accepted due to the limitations of a recorder or for a storage space.

The MP3 recordings are considered as the best option for certain recorders  and when the storage space is severely limited. It produces a good quality recording.

Answer: See explanation

Explanation:

During the, (software design phase), developmentt teams transform the requirements into a software application design.

During the (software development phase), the software design is implemented by developers in code.

In the (software evaluation phase), software is evaluated for quality.

Any issues with the software are logged as (bugs) to be resolved by developers.

Software that is maintained by developers is said to be (supported).

Answer:

1) 2

2) 1

3) 2

4) 2

5) 3

Explanation: just did it

Answer:

A user made an error while trying to set up a software program.

Answer:

A computer can't find the file that it needs to perform an operating system function. A computer displays error messages, and then the Blue Screen of Death appears. A user made an error while trying to set up a software program.

Explanation:

Answer:

Business communications tools are widely used and the world is becoming increasingly digital so not having those skills will hinder you.

Explanation:

Many jobs require knowledge of Microsoft tools as a qualification. By not having that expertise, I will be viewed as less qualified for a position and may be passed up for job. In corporate America, presentations are a staple and Microsoft PowerPoint is the primary software. If I deliver a poor presentation due to inexperience, I will make myself look bad and as a result get a bad quarterly review and possibly stunted any future promotions. On the flipside, as a business owner Excel is a handy tool for tracking expenses. Very customizable, quick and easy to understand.

Answer:

Simplifies creating a complex program

Explanation:

Answer: Feedback

Explanation:

The input components of the systems model can consist of resources like people, energy, tools, capital, etc.

The feedback components of the systems model provides information so

the system can adjust its function. An example of the feedback mechanism for a system is the progress bar which shows when one is downloading a file on iTunes.

Answer :

1 . Stores Information temporarily

2 . byte

3 . switch between applications

4 . upgrade the RAM

5 . 8

JUST DID IT (Edge 2021)

Explanation:

Cybercrime is criminal activity that either targets or uses a computer, a computer network or a networked device

Answer:

im guessing its a?

Explanation:

Answer: Malware infected the Director's machine and used his privileges

Explanation:

Malware simply means malicious software variants, which consists of spyware, viruses, ransomware etc. These can be used by cyberattackers to cause damage to data or in order to have access to a network.

With regards to the question, Xander believed that malware infected the Director's machine and used his privileges which results in the corrupt of the files.

Answer:

efeiueur eiuube erferve

Explanation:

Answer:

La energia no renovable proviene de fuentes que se agotaran o no se repondran durante miles o incluso millones de años.

Los combustibles fósiles se queman para generar energía y electricidad. Por ejemplo, carbón.

Answer and Explanation:

The eight primitive data types in Java include:

byte , short , int , long , float , double , boolean and char.

By size of datatype we mean the amount of memory the data type occupies. For a 32-bit processor/CPU,

The size of int data type(with whole numbers from -2,147,483,648 to 2,147,483,647) in Java is 4 bytes

The size of byte data type is 1 byte

The size of short data type is 2 bytes

The size of long data type is 8 bytes

choose the correct option:

1) using

2) is

3) use

4) to eat

5) use

Answer:

The program in Python is as follows:

myStr = input()

pos = int(input())

chrr = input()

myList=[]

myList[:0]=myStr

myList[pos] = chrr

myStr =""

for i in myList:

   myStr+=i

print(myStr)

Explanation:

This gets input for the string

myStr = input()

This gets input for the character position

pos = int(input())

This gets input for the incoming character

chrr = input()

Create an empty list

myList=[]

Convert the string to a list

myList[:0]=myStr

Replace the character

myList[pos] = chrr

Empty the string

myStr =""

Get the new string

for i in myList:

   myStr+=i

Print the new string

print(myStr)

Following are the C++ program to replace the first index value of the string.

Program Explanation:

Program:

#include <iostream>//header file

#include <string>//header file

using namespace std;

int main() //main method

{

 string Sval;//defining string variable

 int Spos;//defining integer variable

 char Subchar;//defining char variable

 cin>>Sval>>Spos>> Schar;//input value

 Sval.at(Spos)  =  Subchar; //using string variable that replaces the first index value with the character value

 cout << Sval << endl;//printing the replaced value

 return 0;

}

Output:

Please find the attached file.

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Answer:

You would use a twig first :)

Explanation:

Answer:

The glowing embers from the crackling campfire lit up the nighttime sky.

Explanation:

Starting something

Possibly turning it off

Making something work

Fixing the Start Button

Beginning something

Answer:

The company will be able to provide human representative for any incoming call

Explanation:

The upgrade of a system is meant to resolve identified issues in an initial system and given that the available human representative is usually less than the number of incoming call at a given time, due to a constant drive for a larger customer base, we have;

The upgraded system will provide technologies such that human representative will not be required for some inquiries, customers will listen to mainly relevant information with regards to their issues and customers will be properly directed to the correct department that are concerned with their current issue

Therefore, the LEAST likely goal of the upgraded system from among the options and therefore the least likely to be provided by the upgrade is the company will be able to provide human representative for any incoming call

Answer:a

Explanation:

A professional-looking portfolio gives a clear message that you put on a show for effect. Thus, the correct option is D). that you put on a show for effect.

Professional portfolio refers to the collection of work and other documents that make clear the abilities of the candidate to the potential employers.  It can be created in both digital and physical format.

A portfolio is an collected album of all work samples and professional documentation that provides proof about the accomplishments, skills, potential and samples of an individual's work.  

In order to give portfolio a professional look, there are several categories to be consider such as Personal Information, Values, Personal Goals and History, Accomplishments and Job History, Skills and Attributes, Education and Training as well.

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