Question

The chances that you will be ticketed for illegal parking on campus are about 75%. During...

The chances that you will be ticketed for illegal parking on campus are about 75%. During the last three weeks, you have illegally parked 15 days. What is the possibility that:

A. You received exactly 10 tickets.

B. You received no more than 10 tickets.

C. You received no less than 10 tickets.

D. You received 6 to 9 tickets.

E. Given that you received more than 10 tickets, what is the probability you received more than 13 tickets.

Math   Statistics-And-Probability   
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Answer #1

Let X is a random variable shows the number of times you get ticket out of 15. Here X has binomial distribution with parameters as follows:

n=15 and p=0.75

A:

The possibility that you received exactly 10 tickets is

B;

The possibility that you received no more than 10 tickets is

C:

The possibility that you received no less than 10 tickets is

D:

The possibility that you received 6 to 9 tickets is

E:

So the probability you received more than 13 tickets given that you received more than 10 tickets is

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