Question

1 a.) Suppose that only 25% of all drivers come to a complete stop at an intersection having flashing red lights in all directions when no other cars are visible. What is the probability that, of 15 randomly chosen drivers coming to an intersection under these conditions, exactly 3 will come to a complete stop? answer.225

1. b) Now suppose that only 20% of all drivers come to a complete stop at an intersection
having flashing red lights in all directions when no other cars are visible. What is the probability that, of 15 randomly chosen drivers coming to an intersection under these
conditions, exactly 5 will come to a complete stop? answer .103

Please show all work & explain all the steps

Answer 1

1a)

p = 0.25

n = 15

X follows Binomial distribution.

Binomial formula is

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1b)

p = 0.20

n = 15

X follows Binomial distribution.

Binomial formula is

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