x -5 -1 2 7 10

P(x)0.15 0.08 0.22 0.18 0.37

Determine the expected value of x.

Determine the standard deviation of x.

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- Jul 25th 2012, 10:06 PMnumbaoneazn1Help with standard deviation & expected value please
x -5 -1 2 7 10

P(x)0.15 0.08 0.22 0.18 0.37

Determine the expected value of x.

Determine the standard deviation of x. - Jul 26th 2012, 01:45 AMBAdhiRe: Help with standard deviation & expected value please
Stick to the definitions,

and

or

Next time please show where you cannot understand, because for me this seems quite basics (Nod)