Question 617083
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
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(131.981)}}} =  11.4883