Questions from Engineering Statistics

Q: How many ways are there to select 3 candidates from 8 equally

How many ways are there to select 3 candidates from 8 equally qualified recent graduates for openings in an accounting firm?

Q: Twelve people are given two identical speakers, which they are asked

Twelve people are given two identical speakers, which they are asked to listen to for differences, if any. Suppose that these people answer simply by guessing. Find the probability that three people c...

Q: According to USA Today (March 18, 1997), of 4

According to USA Today (March 18, 1997), of 4 million workers in the general workforce, 5.8% tested positive for drugs. Of those testing positive, 22.5% were cocaine users and 54.4% marijuana users. (...

Q: How many ways are there that no two students will have the

How many ways are there that no two students will have the same birth date in a class of size 60?

Q: Find the errors in each of the following statements: (

Find the errors in each of the following statements: (a) The probabilities that an automobile salesperson will sell 0, 1, 2, or 3 cars on any given day in February are, respectively, 0.19, 0.38, 0.29,...

Q: An experiment consists of tossing a die and then flipping a coin

An experiment consists of tossing a die and then flipping a coin once if the number on the die is even. If the number on the die is odd, the coin is flipped twice. Using the notation 4H, for example,...

Q: Assuming that all elements of S in Exercise 2.8 on

Assuming that all elements of S in Exercise 2.8 on page 42 are equally likely to occur, find (a) the probability of event A; (b) the probability of event C; (c) the probability of event A ∩ C.

Q: A box contains 500 envelopes, of which 75 contain $100

A box contains 500 envelopes, of which 75 contain $100 in cash, 150 contain $25, and 275 contain $10. An envelope may be purchased for $25. What is the sample space for the different amounts of money?...

Q: Suppose that in a senior college class of 500 students it is

Suppose that in a senior college class of 500 students it is found that 210 smoke, 258 drink alcoholic beverages, 216 eat between meals, 122 smoke and drink alcoholic beverages, 83 eat between meals a...

Q: The probability that an American industry will locate in Shanghai, China

The probability that an American industry will locate in Shanghai, China, is 0.7, the probability that it will locate in Beijing, China, is 0.4, and the probability that it will locate in either Shang...