Consider the following table of the ages of our first six presidents
ages of the first 6 presidents at inauguration
washington 57
j. adams 61
jefferson 57
madison 57
monroe 58
jq adams 57
find the mean of the data set
(57+61+57+57+58+57)/6 = 347/6 = 57.83
find the standard deviation (showing all work)
how many of the presidentsí ages fall within one standard deviation of the mean?