Modify the statistics program from this chapter so that client programshave more flexibility in computing the mean and/ or standard deviation.Specifically, redesign the library to have the following functions:mean(nums) Returns the mean of numbers in nums.stdDev(nums) Returns the standard deviation of nums.meanStdDev (nums) Returns both the mean and standard deviation of nums.

Answers

Answer 1

Answer and Explanation:

Using Javascript:

function mean(nums){

var array_numbers= new array(nums);

var meanofNums= array_numbers.reduce()/array_numbers.length;

Console.log(meanofNums);

}

Function Std(nums){

var OurArray= new Array(nums);

var meanOfnums= mean(nums);

var i;

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

OurArray[i]= OurArray[i]-meanOfnums*OurArray[i]-meanOfnums;

}

var al_stdOfnums= OurArray.reduce()/OurArray.length;

var stdOfnums= Math. sqrt(al_stdOfnums);

Console.log(stdOfnums);

}

function meanStdDev (nums){

mean(nums);

Std(nums);

}

/*From the code above, we have defined functions and used them in the last function definition meanStdDev (nums), making for code reusability. In defining the functions, we have followed the formulas for calculating mean and standard deviations and implemented in that order. Notice how we used a for loop in std(nums) function definition to iterate through the elements of the array nums, squaring each value and reassigning a new value for each element(using index value) in the array. We then added these values in array using reduce method, dividing by array length and square rooting the value using the math object method sqrt().*/


Related Questions

Helpppppppppppppphuhuh

Answers

Answer:

B

Explanation:

You listed this as Computers and Technology where we post coding questions, or hardware related things, but ok.

If there is 7/8 jugs as the starting amount, and they have a 1/2 jug, dividing 0.875 by 0.5 gives the answer of 1.75 or 1 3/4.

Tristen is teaching her history course. She printed off her presentation so the students could take notes. Wyatt is
teaching a science course. He wants to make sure students who do not have PowerPoint can still view the
presentation. Reed is teaching a math course online. He finds the students are very visual and wants to control the
timing per slide
Which best describes how each teacher handled their presentations?
O Tristen created handouts, Wyatt saved as a PDF, and Reed saved as a video
O Tristen created a video, Wyatt saved as a PDF, and Reed broadcasted.
O Tristen created handouts, Wyatt saved as a video, and Reed saved as a PDF.
O Tristen created a video, Wyatt broadcasted, and Reed saved as a video

Answers

Since Tristen want her students to take notes on her presentations, she should have some sort of handout.

Because Wyatt, wants to ensure that students who do not have PowerPoint can still view his presentations, converting it into a pdf is best.

Since Reed's students are very visual, converting his slides into a video will make it better for students who want to spend some time assessing some of the graphs or equations.

Thus, A is the best choice.

which of the following would not transmit signals from one point to another? a. telephone line. b. modem. c. fibre optics. d. coaxial cable​

Answers

Answer:

b

modem

Explanation:

modem is used to receive signals not transmit

tiền tệ ra đời là kết quả

Answers

bruuh, wht is this man saying

Money was born as a result?

Express your opinion on whether a successful business analyst can be a good programmer. support your answers with reason

Answers

I think that a successful business analyst could be a good programmer because if they had the write training and experience they could learn about that field of work and become good at programming

The program prompts the user for five to ten numbers all on one line, separated by spaces, calculates the average of those numbers, and displays the numbers and their average to the user.

The program uses methods to:

1) get the numbers entered by the user all on one line separated by spaces;

2) calculate the average of the numbers entered by the user; and

3) print the results.

The first method should take no arguments and return a String of numbers separated by spaces.

The second method should take a String as its only argument and return a double (the average).

The third method should take a String and a double as arguments but have no return value.

IF user input is: 20 40 60 80 100

Answers

Answer:  

import java.util.Scanner;  

public class AverageDemo

{  

public static String getNumbers()

{

 

 String numbers;  

 Scanner scn = new Scanner(System.in);  

 System.out.println("Enter five to ten numbers all on one line, separated by spaces: ");

 numbers = scn.nextLine();

 return numbers;

}  

public static double calcAverage(String numbers)

{

 String[] values = numbers.split(" ");

 double total = 0;  

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

 {

  total += Integer.parseInt(values[i]);

 }  

 if (values.length == 0)

  return 0.0;

 else

  return (total / values.length);

}  

// Method definition of printResults: print the results

public static void printResults(String numbers, double average)

{

 System.out.printf("\nThe average of the numbers %s is %.2f\n", numbers, average);

}  

// main method

public static void main(String[] args)

{

 // Call the methods

 String numbers = getNumbers();

 double average = calcAverage(numbers);

 printResults(numbers, average);

}

}

Output:

What does this mean? it is coming after i ask a question

Don't use such phrases here, not cool! It hurts our feelings :(

Answers

Answer:

To my own opinion I think it means that when you're answering a question here in brainly I think they are referring that your message is rude but sometimes you are not rude but I don't know. Maybe it could be some difficult technical problems.

Which computer can be used where there is no regular electricity?​

Answers

Answer:

A mechanical computer

Explanation:

Created from gears and levers

why the internet is not policed​

Answers

Answer:

The Internet allows people to circumvent law by committing criminal acts from areas where their activities are not illegal. Those areas will always exist, and thus new regulations will be just as ineffective as the old ones are ["Net Needs Law Enforcement, Author Says,"]. But Internet traffic is marked with IP addresses, and those addresses can be tied to specific networks with specific locations. Shouldn't it be possible to separate traffic based on the originating network and treat data coming from relatively insecure locations differently than data coming from relatively secure locations? It would be much harder for someone in a rogue nation to hack a network if he had to hack an intermediary network first. And unlike government regulation, which has zero impact in areas where these threats are likely to originate, separating traffic by location might actually work

monitor is hard copy output device??
false
true​

Answers

Answer:

false

Explanation:

monitor is an output device but not hard copy. Hard copy is paper

Kolom terakhir pada lembar kerja Excel 2019 adalah​

Answers

Answer:

Tahan CTRL dan tekan tombol panah kanan (tombol kursor) pada keyboard. Anda dibawa ke kolom paling kanan. Dalam versi Excel modern, ini adalah kolom XFD, yaitu 16.384 kolom. Di versi Excel yang lebih lama (2003 dan sebelumnya) kolom terakhir adalah IV yaitu 256 kolom.

in english

Hold down CTRL and press the right arrow key (cursor key) on the keyboard. You are taken to the right-most column. In the modern versions of Excel this is column XFD, which is 16,384 columns. In older versions of Excel (2003 and prior) the last column was IV which is 256 columns.

Abdullah wants to send sessitive data. Abdullah wants to make sure that only ahmed can see and read this. How can abdullah protect this data, so that ahmed can only access it. By using this information make an algorithm.

Answers

Answer:

Use an encryption algorithm

Explanation:

An encryption algorithm can be used to hide the message from parties in-between or any third parties that might want to intercept the message being sent by Abudullah to Ahmed.

Encryption algorithms use cryptographic methods to encrypt or code data such that only the sender and receiver of that data have the keys to properly decode/decrypt these messages/data.

1. Answer the following questions: a. What are the different types of number system? Name them.​

Answers

Answer:

binary,decimal, hexadecimal and octal number system

What is malware? a type of virus that spreads through a network connection a type of virus that targets programs and files any program designed to do harm a type of software designed to track activity online

Answers

Answer:

any program designed to do harm.

Explanation:

Malware is a program that was created by someone with malicious intent. Malware can target your windows system files and damage windows(or what ever os you use). Malware can corrupt files and even lock you out of your computer.

Which of these is NOT an input device?
O keyboard
O mouse
O blinking light
O microphone

Answers

Blinking light is not one of the awansers

What does RoHS stand for and why is RoHS compliance important?

Answers

Answer:

It stands for Restriction of Certain Hazardous Substances.

Web search says it is important because,

RoHS compliance dovetails into WEEE by reducing the amount of hazardous chemicals used in electronic manufacture. Put another way, RoHS regulates the hazardous substances used in electrical and electronic equipment, while WEEE regulates the disposal of this same equipment.

Explanation:

ou have a company network that is connected to the internet. You want all users to have internet access, but you need to protect your private network and users. You also need to make a web server publicly available to internet users. Which solution should you use

Answers

Server and network is 2 different things, just put the server on a different network.  ;) duh

Explanation:

Plz help help help


What was the first electromechanical digital computer?

For your kind information I would like to tell you that don't search on internet because it will show ENIAC and that is not the answer the answeris may be ABC or MARK I. I am just confused, Please help me

Answers

Explanation:

For your kind information the answer of the question is MARK I.

Answer:

What was the first electromechanical digital computer?

=⟩ Mark I was the first electromechanical digital computer.

Hope it helpful to you

write a c program to display the series: 1,8,27,64,125​

Answers

num_list = [1, 8, 27, 64, 125]

for x in range ( len( num_list) ) :

print (num_list[x])

In large organizations, there is a formal business function that includes developing an information policy, planning for data, overseeing logical database design and data dictionary development, and monitoring how information systems specialists and end user groups use data. __________ is responsible for information policy, as well as for data planning, data dictionary development, and monitoring data usage in the firm.

Answers

Answer:

Data administration.

Explanation:

Data management is a type of infrastructure service that avails businesses (companies) the ability to store and manage corporate data while providing capabilities for analyzing these data.

A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to effectively and efficiently create, store, modify, retrieve, centralize and manage data or informations in a database. Thus, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.

Generally, a database management system (DBMS) acts as an intermediary between the physical data files stored on a computer system and any software application or program.

Hence, a database management system (DBMS) is a system that enables an organization or business firm to centralize data, manage the data efficiently while providing authorized users a significant level of access to the stored data.

Data administration is a strategic process that is typically responsible for establishing information policy, data planning, data dictionary development, and monitoring data usage in the firm.

You have been asked to help a small office with a limited budget set up and configure a Windows network. There are only five computers in this office. In addition to the ability to share network resources, security is a top priority.
Which of the following is the BEST course of action in this situation?
A. Install a HomeGroup to provide a single login and simplify security and sharing.
B. Install a WorkGroup to provide a single login and simplify security and sharing.
C. Install a WorkGroup to allow each device to control what is shared and with whom.
D. Install a HomeGroup to allow each computer to control which items are shared and who can access them.

Answers

Answer:

I will choose a option tin best

Answer: Install a WorkGroup to allow each device to control what is shared and with whom.

Explanation:

PLS HELP ME WITH MY PYTHON HW

Answers

Answer:

name=input('What is your name?')

age=input('What is your age?')

school=input('What is your school?')

print('Hi '+ name +', you are '+ age +', and you go to '+school+'.')

age=int(input('What is your age?'))

if age > 10:

 print('You are a teenager')

for x in range(10):

 print(name)

country='United States or America'

print(country[17:24])

a_list = [0, 2, 4, 8]

maximum = max(a_list)

print(maximum)

minimum = min(a_list)

print(minimum)

numbers = [1, 3, 4, 2]

numbers.sort()  

print(numbers)


What types of customizations have you or would you make to your operating system, and why?

Answers

Answer:

Explanation:

I have made a couple of customizations to my OS, which is Windows 10. The first being that I activated dark mode, this feature turns the entire OS into a dark-themed color, including apps and menus. This makes using the computer for extended hours much easier on the eyes. The other very important customization I added was a hover taskbar. This allows me to add many important shortcuts to the taskbar which all appear when I hover over the taskbar. It makes my desktop much cleaner and I have quick and easy access to my most important applications.

What contains programming statement written in VB?​

Answers

Answer:

A statement in Visual Basic is a complete instruction. It can contain keywords, operators, variables, constants, and expressions. Each statement belongs to one of the following three categories: Declaration statements, which name a variable, constant, or procedure and can also specify a data type.

How do we explain the difference between fake news and facts​

Answers

Answer: it depends if the news is on the news and someone rights an article about it and says some mislead details that's how u know its fake  

Explanation:

You are in charge of installing a remote access solution for your network. You decide you need a total of four
remote access servers to service all remote clients. Because remote clients might connect to any of the four
servers, you decide that each remote access server must enforce the exact same policies. You anticipate that
the policies will change frequently.
What should you do? (Select two. Each choice is a required part of the solution.)
A. Configure network policies on the RADIUS server.
B. Make each remote access server a member of the RemoteServers group.
C. Configure the exact same network policies on each server.
D. Configure one of the remote access servers as a RADIUS server, and all other servers as RADIUS clients.
E. Use Group Policy to configure network policies in the default Domain Controllers GPO.
F. Configure each remote access server as a domain controller.

Answers

Answer: configure one of the remote access servers as a RADIUS server and all other servers as RADIUS clients

configure network access policies on the RADIUS server

Explanation:

Aarti, a museum employee, has created a table in access titled “Roman Achitecture”. She has included a field that links users images of buildings.

Answers

Answer:

memo

Explanation:

Aarti, a museum employee, has created a table in access titled “Roman Achitecture”. She has included a field that links users images of buildings

What is the role of memory in a computer​

Answers

Answer:

Computer random access memory (RAM) is one of the most important components in determining your system's performance. RAM gives applications a place to store and access data on a short-term basis. It stores the information your computer is actively using so that it can be accessed quickly.

if ur computer is runing slowly what is most likey to slove the problem

Answers

One way to solve this problem is if you clear up some storage space. On my computer things were running very slowly and I checked my storage and it was beyond full. Another way would be to clean up your hard drive, run some virus and malware scans as your computer may have some viruses that would be slowing it down. Some others ideas are to download more memory on your computer, install a faster hard drive, and reinstall or upgrade your operating system. I hope this helps!!
Reboot the device or clear your cache. Maybe it may need to go to a shop as well and get a few parts switched out

Help me why did my desktop erase every app I need that please

Answers

Answer:

Your computer is affected by a polymorphic or trojan horse virus, so install avast antivirus. Set your computer into safe mode, then open the antivirus

Answer:

your pc has virus

Explanation:

Other Questions
Find the square roots of these numbers by division method. a-6090 Which functions have a maximum value greater than the maximum of the function g(x) = -(x + 3)2 - 4? help me please brainliest for the best answer!! what is programming language? Really need help and the answer on this one plz help. Read this excerpt from Extremely Loud and Incredibly Close.I knew I could never let Mom hear the messages, because protecting her is one of my most important raisonsd'tre, so what I did was I took Dad's emergency money from on top of his dresser, and I went to the RadioShack on Amsterdam. It was on a TV there that I saw that the first building had fallen. I bought the exact samephone and ran home and recorded our greeting from the first phone onto it. I wrapped up the old phone in thescarf that Grandma was never able to finish because of my privacy, and I put that in a grocery bag, and I put thatin a box, and I put that in another box, and I put that under a bunch of stuff in my closet, like my jewelryworkbench and albums of foreign currencies.Which word best describes the tone of this excerpt?O deceitfulsentimentalmethodicalO respectfulMy Help me please. President Hoover's approach to the Great Depression was to a leave the economy alone to work itself out of trouble. b nationalize major industries. c encourage the states to stimulate spending. d work for the breakup of business monopolies. e offer federal assistance to businesses and banks but not individuals. Chac MoolInferir Luego de adquirir la estatua, Filiberto decide reorganizar su cuarto de trofeos para colocarla all. Qu crees que simboliza esto?Enfoque en el estilo Desde que el Chac Mool est en el stano, Filiberto slo tiene problemas. Qu recursos usa el autor para que nos demos cuenta de la desesperacin de Filiberto? Find the percent notation of 2.2 The difference between actual overhead costs incurred and the budgeted overhead costs based on a flexible budget is the: Multiple Choice Production variance. Controllable variance. Volume variance. Price variance. Quantity variance. For the triangle shown, what are the values of x and y?60306Select the correct answer.O x = 2V3, y = 473O x= 3V3, y = 6/3O x = 6/3, y = 12O x = 6V3, y = 1273 Mary uploaded some images on her website. She chose an image and downloaded it. She found that the image she saw on screen did not seem to have the same DPI as when she had scanned it (she had uploaded a scanned image with 300 DPI). What could be reason with this visual decrease in DPI on the computer screen? (Correct Answer only) A. Some image resolution was lost while uploading itB. She downloaded a compressed version of the image.C. The computer reset the resolution of the image.D. Her file was probably corrupted while downloading.E. Computer screens typically display images of only 72 DPI. what led to ancient china's isolation f(x) = Square root of quantity x plus seven. ; g(x) = 8x - 11 Find f(g(x)). (1 point) f(g(x)) = 2 Square root of quantity two x plus onef(g(x)) = 8 Square root of quantity x plus seven - 11 f(g(x)) = 8 Square root of quantity x plus fourf(g(x)) = 2 Square root of quantity two x minus one solubility of sodium chloride in water at 27 degree celsius is 22.7 in hundred ml of water the density of water is 1.0 gram per ml calculate the concentration of sodium chloride in term of mass percentage when dissolved in 500 ml of waterplease tell me correct answer with solution True or false, The universal gas constant, R, is . 0821 when we use mm Hg as our unit for pressure I'LL GIVE BRAINLIEST !!! FASTERR ! Does water exist on Mars? Explain your answer. Why didn't Jupiter become a star during the early. write any six ways to solve the problem of drug abuse