Answer to Question #233398 in Statistics and Probability for Reyad

Statistics and Probability

Question #233398

Find the mean of a random variable z? z 0 1 2 3 f(z) 1/6 2/6 2/6 1/6

Expert's answer

E(Z) ="\\sum z. f(z)"

="(0*\\frac 16+1*\\frac 2 6+2*\\frac 2 6+3*\\frac 1 6)"

="\\frac 96"

=1.5

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