Question: We have provided the probability distributions of the random variables considered in Exercises 5.7-5.10 of Section 5.1. For each exercise, do the following tasks. a.

We have provided the probability distributions of the random variables considered in Exercises 5.7-5.10 of Section 5.1. For each exercise, do the following tasks.
a. Find the mean of the random variable.
b. Obtain the standard deviation of the random variable by using one of the formulas given in Definition 5.5.

P(X=x) | 0.3 0.4 0.3

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