Question: Consider the probability distribution for the random variable x shown here: a. Find = E1x2. b. Find s2 = E31x - 224. c. Find

Consider the probability distribution for the random variable x shown here:x -1 1 y .2 .4 52 22

a. Find μ = E1x2.

b. Find s2 = E31x - μ224.

c. Find s.

d. Interpret the value you obtained for μ.

e. In this case, can the random variable x ever assume the value m? Explain.

f. In general, can a random variable ever assume a value equal to its expected value? Explain.

x -1 1 y .2 .4 52 22

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