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  • Subject: Statistics Help
Subject: Statistics Help
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I'll give lists, each corresponding to the respective position on the next list:

Profit: .5, 1.5, 2, 4, 8
Probability: .1, .2, .4, .2, .1

Find the mean profit
Find the variance of the profit
Find the standard deviation of the profit

This is on a take-home quiz of mine. A couple of the available formulas are:

E(X)= Ex*p(x) (the second E is that weird one that looks Greek)
Var(x)= E(x-mew)^2p(x) (again, same type of weird E)

  • 01.06.2013 1:32 PM PDT
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Lady Astor: "If I were your wife I'd put poison in your coffee."
Winston Churchill: "If I were your husband I'd drink it !"

Not a statistics geni but are you wanting help with this are challenging us to solve it?

Also the greek symbol thats weird and looks like E is sigma which is used to notate summation

  • 01.06.2013 1:40 PM PDT