Answer:
Here
X = 14, 15, 16, 1, 18, 19, 20, 21 and
P(X
= 14) =
P(X
= 16) =
P(X
= 18) =
P(X
= 20) =
Probability
distribution
Now
and
mean
(X) = E(X) =
Var
(X) = E (X2) ? [(E(X)]2
=2.19
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