X 5 8 9 4 10 6 p(X) 1/6 1/6 1/6 1/6 1/6 1/6 Mean : 7 Variance : 4.67 is the mean and variance correct? if wrong plz explain with formula
Last edited by balajikcp8; February 7th 2013 at 10:18 PM.
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Is this statics question naaaaaaaaaaaaaaa..............??????????? plz explain team if u have any idea........ thanks
Yes that is correct! Remember the mean for a PMF is the sum from 0 to n of x*p(x) = E[x] And the variance is E[x^2] - (E[x])^2 Which is p(x)*x^2 - ( p(x)*x)^2
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