# Question: The following table gives the distribution of the amounts of

The following table gives the distribution of the amounts of rainfall (in inches) for July 2012 for 50 cities.

Rainfall Number of Cities

0 to less than 2.......... 6

2 to less than 4.......... 10

4 to less than 6.......... 20

6 to less than 8.......... 7

8 to less than 10.......... 4

10 to less than 12......... 3

Find the mean, variance, and standard deviation. Are the values of these summary measures population parameters or sample statistics?

Rainfall Number of Cities

0 to less than 2.......... 6

2 to less than 4.......... 10

4 to less than 6.......... 20

6 to less than 8.......... 7

8 to less than 10.......... 4

10 to less than 12......... 3

Find the mean, variance, and standard deviation. Are the values of these summary measures population parameters or sample statistics?

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