Problem

Of the people passing through an airport metal detector, .5% activate it; let X = the nu...

Of the people passing through an airport metal detector, .5% activate it; let X = the number among a randomly selected group of 500 who activate the detector.

a. What is the (approximate) pmf of X?

b. Compute P(X = 5).

c. ComputeP(5 ≤ X)

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