Chapter 4: Introduction to Probability

This summer, a family knows they will take their vacation in Michigan, Minnesota, or Wisconsin. While on vacation, their main activity will be hiking or bicycling. How many combinations of main activity and state (for example, bicycling in Wisconsin) are possible?
1. 3
2. 4
3. 5
4. 6
5. None of the above
At a new baseball stadium, the number of seats in each section follows:

Assume that you have won a randomly selected seat for the next home game. What is the probability that you won a lower box seat?
1. 0.333
2. 0.375
3. 0.5
4. 1
5. None of the above answers is correct
At a new baseball stadium, the number of seats in each section follows:

Assume that you have won a randomly selected seat for the next home game and have determined the probability that you won a lower box seat. Which method of assigning probability was used?
1. Classical
2. Relative frequency
3. Subjective
4. None of the above answers is correct
The complement of event G is everything that is
1. G
2. B or G
3. not G
4. nice G
5. None of the above answers is correct
P(A) = 0.6, P(B) = 0.5, so P(A∪B) =
1. 0.3
2. 0.5
3. 0.6
4. 1.1
5. Cannot be determined.
P(A) = 0.6, P(B) 0.5, and P(A∩B) = 0.3, so P(A∪B) =
1. 0.5
2. 0.6
3. 0.8
4. 1.1
5. Cannot be determined
P(A) = 0.6, P(B) = 0.5, and P(A∩B) = 0.3, so P(A|B) =
1. 0.5
2. 0.6
3. 0.8
4. 1.1
5. Cannot be determined
P(A) = 0.6, P(B) = 0.5, and P(A∩B) = 0.3, so events A and B are mutually exclusive.
1. True
2. False
P(A) = 0.6, P(B) = 0.5, and P(A∩B) = 0.3, so events A and B are independent.
1. True
2. False
P(A) = 0.2, P(B) = 0.5, and events A and B are mutually exclusive. P(A∩B) =
1. 0
2. 0.3
3. 0.7
4. 1
5. None of the above