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Jet001 [13]
3 years ago
6

These data provides the responses of 10 students in class A and in class B who were asked how many hours they slept lastThese da

ta sets provide the responses of 10 students in class A and class B who were asked how many hours they slept at night.
Class A: {7, 6, 7, 8, 8, 7, 4, 5, 6, 7}

Class B: {7, 7, 6, 5, 7, 6, 8, 9, 6, 8}



Which statement is true for the two data sets?


The median sleeping time is greater for class A than for class B.


The median sleeping time is greater for class B than for class A.


The average, or mean, sleeping time is greater for class B than for class A.


The average, or mean, sleeping time is greater for class A than for class B.
Computers and Technology
1 answer:
dmitriy555 [2]3 years ago
3 0

Answer:

Answer C

Explanation:

Class A Median: 4, 5, 6, 6, 7, 7, 7, 7, 8, 8

The Median of Class A is 7.

Class B Median: 5, 6, 6, 6, 7, 7, 7, 8, 8, 9

The Median of Class B is 7.

Class A Mean: 4 + 5 + 6 + 6 + 7 + 7 + 7 + 7 + 8 + 8 = 65

To find the mean, you add all of the numbers together, and divide the total by the amount of numbers. (There are ten numbers in the equation, so we divide 65 by 10.)

65/10 = 6.5, This means that the mean of Class A is 6.5

Class B Mean: 5 + 6 + 6 + 6 + 7 + 7 + 7 + 8 + 8 + 9 = 69

Do the same thing as last time, divide 69 by 10. (6.9)

The mean of class B is 6.9

Answer A and B are both incorrect, because the medians for both classes were the same.  Answer C is correct, because the mean of class B was 6.9 and the mean of Class A was 6.5

Answer D is also incorrect, 6.9 is 0.4 greater than 6.5

Solved by Inspire! (14 years old)

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<h3><em>Answer:</em></h3>

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6 0
2 years ago
Suppose that, on average, 4 percent of all cd drives received by a computer company are defective. the company has adopted the f
kicyunya [14]

The fraction of shipments that will be accepted is 0.1299.

<h3>How to calculate the probability?</h3>

Probability of a defective DVD = 0.04

Using Binomial distribution,

Fraction of shipments accepted = Probability of zero defects in sample of 50 = P(X = 0)

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Fraction of shipments accepted = Probability of zero or one defects in sample of 50 = P(X = 0) + P(X = 1)

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6 0
2 years ago
What type of Windows server has Active Directory installed and is responsible for allowing client computers access to domain res
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Answer:

Domain controller                    

Explanation:

  • A domain controllers is a server which acknowledges authentication requests and validates users access on the computer network in order to use the resources.
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  • It also allows user to access the other domain and also access the resources of other domain.
  • For example there is a network of multiple computers and each computer requires authentication i.e user is asked to provide the username and password.
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4 0
3 years ago
Assume that the following variables have been properly declared and initialized.
Neko [114]

Answer:

boolean rsvp;

int selection;

String option1;

String option2;

(a) if(rsvp){

System.out.println("Attending");

} else {

System.out.println("Not attending");

}

(b) if (selection == 1){

System.out.println("Beef");

} else if (selection == 2){

System.out.println("Chicken");

} else if (selection == 3) {

System.out.println("Pasta");

} else {

System.out.println("Fish");

}

(c) switch(selection){

case 1:

if(rsvp){

option1 = "Thanks for attending. You will be served beef.";

} else{

option1 = "Sorry you can't make it";

}

break;

case 2:

if(rsvp){

option1 = "Thanks for attending. You will be served chicken.";

} else{

option1 = "Sorry you can't make it";

}

break;

case 3:

if(rsvp){

option1 = "Thanks for attending. You will be served pasta.";

} else{

option1 = "Sorry you can't make it";

}

break;

default:

if(rsvp){

option1 = "Thanks for attending. You will be served fish.";

} else{

option1 = "Sorry you can't make it";

}

break;

}

(d) if (option1 == option2){

System.out.println("True");

} else {

System.out.println("False");

}

Explanation:

This code snippet is written in Java.

a) Uses if statement to print "attending" if rsvp is true and "not attending" if rsvp is false.

b) Uses if-else statement to print the variety of food based on user selection. If selection is 1, it print beef. If selection is 2, it print chicken. If selection is 3, it prints pasta else it print fish for any other value of selection.

c) Uses switch statement to determine the value of selection and then uses inner if statement to assign "Thanks for attending. You will be served beef." if rsvp is true to option1. The value of beef changes depending on the value of selection. If rsvp is false, then "Sorry you can't make it." is assigned to option1.

d) Uses if statement to print true if option1 and option2 are equal else it print false.

8 0
3 years ago
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