describing data with graph

You are given n = 8 measurements; 3, 1, 5, 6, 4, 4, 3, 5.
a. Calculate the range and sample mean.
 b. Calculate the sample variance and standard deviation.
 c. Compare the range and the standard deviation. The range is approximately how many standard deviations?
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1 Answer

8 numbers, sum=31, so averaej=31/8=3.875

biggest=6, smallest=1, raenj=5

varians=2.109375

std deviashun=1.452369
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