Homework Help is Here – Start Your Trial Now!
Math
Statistics
3b What happens to the standard deviation of a set of scores if (a) A constant a is added to each score in the set? (b) A constant a is subtracted from each score in the set? (c) Each score is multiplied by a constant a? (d) Each score is divided by a constant a?

3b What happens to the standard deviation of a set of scores if (a) A constant a is added to each score in the set? (b) A constant a is subtracted from each score in the set? (c) Each score is multiplied by a constant a? (d) Each score is divided by a constant a?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question

Do the 3b parts of the question only 

tha

S Suppose the midterm grades for 10 students are the following: 70, 65, 75, 80, 63, 90, 71, 75, 93, 83. Using R, show what happens to the standard deviation of the grades if each of the following happens. Attach R. code. (a) The teacher added 5 marks to everyone's grades. (b) The teacher subtracted 5 marks from everyone's grades. (c) The teacher multiplied everyone's grades by 5. (d) The teacher divided everyone's grades by 5. 3b What happens to the standard deviation of a set of scores if (a) A constant a is added to each score in the set? (b) A constant a is subtracted from each score in the set? (c) Each score is multiplied by a constant a? (d) Each score is divided by a constant a?
Transcribed Image Text:S Suppose the midterm grades for 10 students are the following: 70, 65, 75, 80, 63, 90, 71, 75, 93, 83. Using R, show what happens to the standard deviation of the grades if each of the following happens. Attach R. code. (a) The teacher added 5 marks to everyone's grades. (b) The teacher subtracted 5 marks from everyone's grades. (c) The teacher multiplied everyone's grades by 5. (d) The teacher divided everyone's grades by 5. 3b What happens to the standard deviation of a set of scores if (a) A constant a is added to each score in the set? (b) A constant a is subtracted from each score in the set? (c) Each score is multiplied by a constant a? (d) Each score is divided by a constant a?
Expert Solution
Step 1

As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted....

What happens to the standard deviation of a set of scores : 

 

a..A constant a is added to each score in the set

 

b ..A constant a is subtracted from each score in the set 

 

c...Each score is multiplied by a constant a

 

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS