{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Probability practice

20 what is the probability that the company will win

Info iconThis preview shows pages 3–5. Sign up to view the full content.

View Full Document Right Arrow Icon
20.   What is the probability that the company will win at least one of the two contracts? 21. If the company wins contract  B , what is the probability that it will not win contract  A ? 22. What is the probability that the company will win at most one of the two  contracts? 23. What is the probability that the company will win neither contract? 3
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
infected 1% of the population. The firm has announced that 95% of those infected will show a  positive test result, while 98% of those not infected will show a negative test result. What  proportion of test results are correct? A Ph.D. graduate has applied for a job with two universities:  A  and  B . The graduate feels  that she has a 60% chance of receiving an offer from university  A  and a 50% chance of  receiving an offer from university  B . If she receives an offer from university  B , she believes  that she has an 80% chance of receiving an offer from university  A . 25. What is the probability that both universities will make her an offer? 26. What is the probability that at least one university will make her an offer? 27. If she receives an offer from university  B , what is the probability that she will not receive an  offer from university  A ? 28. At the beginning of each year, an investment newsletter predicts whether or not the stock  market will rise over the coming year. Historical evidence reveals that there is a 75% chance that  the stock market will rise in any given year. The newsletter has predicted a rise for 80% of the  years when the market actually rose, and has predicted a rise for 40% of the years when the  market fell. Find the probability that the newsletter’s prediction for next year will be correct. 4
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page3 / 7

20 What is the probability that the company will win at...

This preview shows document pages 3 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online