What is the standard deviation of the following data set rounded to the nearest tenth?
find the mean of the data= 1813/7=259
find the difference between each value and the mean= 181, 169, 197, 417, 148, 122, 238
square each difference= 32,761, 28,561,38,809,173,889,21,904, 14,884, 56,644
Add each of the squares and find the mean= 367,452/7=52,493
the square root of 52,493= 229.11
standard deviation= 229.11
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