Sample A: 10, 20, 30 Sample B: 80, 90, 100 Sample C: 1,095; 1,105; 1,115     (a) Find the mean and standard deviation for each sample.     Sample A: Sample B: Sample C: Mean       Sample Standard Deviation           (b) What does this exercise show about the standard deviation?   The idea is to illustrate that the standard deviation is not a function of the value of the mean. The idea is to illustrate that the standard deviation is a function of the value of the mean.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Consider the following sample data.
 

   
Sample A: 10, 20, 30
Sample B: 80, 90, 100
Sample C: 1,095; 1,105; 1,115
 

 
(a) Find the mean and standard deviation for each sample.
 

  Sample A: Sample B: Sample C:
Mean      
Sample Standard Deviation      
 

 
(b) What does this exercise show about the standard deviation?
 

  • The idea is to illustrate that the standard deviation is not a function of the value of the mean.
  • The idea is to illustrate that the standard deviation is a function of the value of the mean.

 

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