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3. Suppose we have data that suggest that 3% of a company’s hard disk drives are defective. a) What is the probability that the first defective hard drive is the fifth unit tested? b) What constitutes a success in this situation? c) What is the probability of success in the first attempt? d) What is the probability that the first defective hard drive is the third unit tested? Thinking (All questions are of 6 marks) 1. The ideal size of a yoga class at a particular university is 150 students. The university, knowing from past experience that on the average only 30 percent of these accepted for admission will actually attend, uses a policy of approving the applications of 450 students a) Can you approximation this distribution with a normal distribution. Why or why not? b) What is the probability that fewer than 125 students attend this University? c) What is the probability that more than 150 students attend this University?

          3. Suppose we have data that suggest that 3% of a company’s hard disk drives are defective.
a) What is the probability that the first defective hard drive is the fifth unit tested?
b) What constitutes a success in this situation?
c) What is the probability of success in the first attempt?
d) What is the probability that the first defective hard drive is the third unit tested?

Thinking (All questions are of 6 marks)
1. The ideal size of a yoga class at a particular university is 150 students. The university, knowing from past experience that on the average only 30 percent of these accepted for admission will actually attend, uses a policy of approving the applications of 450 students
a) Can you approximation this distribution with a normal distribution. Why or why not?
b) What is the probability that fewer than 125 students attend this University?
c) What is the probability that more than 150 students attend this University?

3. Suppose we have data that suggest that 3% of a company’s hard disk drives are defective.
a) What is the probability that the first defective hard drive is the fifth unit tested?
b) What constitutes a success in this situation?
c) What is the probability of success in the first attempt?
d) What is the probability that the first defective hard drive is the third unit tested?

Thinking (All questions are of 6 marks)
1. The ideal size of a yoga class at a particular university is 150 students. The university, knowing from past experience that on the average only 30 percent of these accepted for admission will actually attend, uses a policy of approving the applications of 450 students
a) Can you approximation this distribution with a normal distribution. Why or why not?
b) What is the probability that fewer than 125 students attend this University?
c) What is the probability that more than 150 students attend this University?

Added by Andriy M.

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