SOLUTION: The following data lists the average monthly snowfall for January in 15 cities around the US: 40 44 43 15 22 29 38 22 14 13 28 29 47 31

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Question 617083: The following data lists the average monthly snowfall for January in 15 cities around the US:

40 44 43 15 22 29 38 22
14 13 28 29 47 31 18

Find the mean, variance, and standard deviation.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, 

The following data lists the average monthly snowfall for January in 15 cities around the US:

 40 44 43 15 22 29 38 22 14 13 28 29 47 31 18

Find the mean, variance, and standard deviation.

Entering Date is Excel spreashett column and Using the Data Analysis Tool...

mean: 433/15 = 28.8667 

variance:  131.981

standard deviation: sqrt%28131.981%29 =  11.4883