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Item11 Item11 Item 11 Consider the following sample data. Sample A: 12, 21, 30 Sample B:...

Item11

Item11

Item 11

Consider the following sample data.

Sample A: 12, 21, 30
Sample B: 70, 79, 88
Sample C: 1,045; 1,054; 1,063


(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.

Math   Statistics-And-Probability   
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