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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
0.10
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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