Keith Keith Solution1 Keiths Florists has 16 delivery trucks

Keith

Solution

1.

Keiths Florists has 16 delivery trucks, used mainly to deliver flowers and flower arrangements in the Greenville, South Carolina, area.
Of these 16 trucks, 6 have brake problems.
A sample of 4 trucks is randomly selected.
What is the probability that 2 of those tested have defective brakes?
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Binomial Problem with n = 4 and p(defective) = 6/16 = 3/8

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P(x = 2) = 4C2(3/8)^2(5/8)^2 = 0.329

a. Prob(5 of 5) = 1/575757 = 0.0000017368 = 1 in 575,757