Suppose x is a random variable for which a Poisson probability distribution with l = .5 provides

Question:

Suppose x is a random variable for which a Poisson probability distribution with l = .5 provides a good characterization.

a. Graph p1x2 for x = 0, 1, 2, 3.

b. Find m and s for x, and locate m and the interval m { 2s on the graph.

c. What is the probability that x will fall within the interval m { 2s?

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