Question: 7. Estimating Mean and Standard Deviation a. Estimate the mean age of cars driven by students at your college. b. Use the range rule of

7. Estimating Mean and Standard Deviation

a. Estimate the mean age of cars driven by students at your college.

b. Use the range rule of thumb to make a rough estimate of the standard deviation of the ages of cars driven by students at your college.

8. Interpreting Standard Deviation The mean height of men is 69.0 in. and the standard deviation is 2.5 in. Use the range rule of thumb to identify the minimum “usual”

height and the maximum “usual” height. In this context, is a height of 72 in. (or 6 ft)

unusual? Why or why not?

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