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Mathematics 13 Online
OpenStudy (anonymous):

Please Help!! Will Medal!! The following table shows the probability distribution for a discrete random variable.What is the mean of this discrete random variable? (That is, what is E(X), the expected value of X?)

OpenStudy (anonymous):

OpenStudy (kropot72):

\[E(X)=\sum_{}^{}xp(x)\]

OpenStudy (anonymous):

Could you please help me understand that because I don't.

OpenStudy (kropot72):

Multiply each value of x by its probability and add the six values to find E(X).

OpenStudy (anonymous):

Thank you.

OpenStudy (kropot72):

You're welcome :) The first of the 6 values is (6 * 0.25) = 1.5

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