1.What is a quantitative measure of variability? 2. Describe how the range and standard deviation uniquely...

1.What is a quantitative measure of variability?

2. Describe how the range and standard deviation uniquely identifies the variability of a distribution.

3. How does the presence of one or more outliers influence the range and standard deviation?

4. Create a collection of 7-12 numbers of your choice (e.g., 4, 9, 13, 2, 7, 8, 6, 10). Find the following quantitative measures of variability:

Range
Sample Variance
Sample Standard Deviation

Show all work. Make sure that the numbers that you choose are different from the numbers chosen from your fellow classmates.

5. Why is the standard deviation a better measure of variation than the range?

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Expert Solution

orchestra answered 1 year ago

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