Question #6300245

What is sample standard deviation of the following data?

data set includes: 4,6,9,11,15 _ s = sqrt [ Σ ( xi - x )^2 / ( n - 1 ) ] I know the formula I would be using and I also know that _ x = 20 n= 5 but how do I find xi? I am completely stumped on this part.

0000-00-00 00:00:00

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