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Find the mean variance and standard deviation of x find the

Question - Suppose the random variable X has the probability distribution given in the table below.

x	2	3	5	7	11	13
p(x)	0.15	0.25	0.15	0.10	0.30	0.05

a. Find the mean, variance, and standard deviation of X.

b. Find the probability X is more than one standard deviation from the mean

c. Find P(X ≤ μ + 2σ).

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