The weights in pounds of a sample of five boxes being sent b

The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.

a. Compute the mean for this sample. Show your work!!

b. Compute the range for this sample. Show your work!!

c. Compute the variance for this sample. Show your work!!

d. Compute the standard deviation for this sample. Show your work!!

Problem

a) mean = sum of all / total numbers

sum = 12+6+7+3+10 = 28

mean = 38/5 = 7.6

b) range = highest - lowest = 12-3 =9

49.19999999999999 / 4 = 12.299999999999997

d) standard dev = varience ^(1/2) = 12.29^(1/2) = 3.50

This is Variance!