To estimate that probability that the next vehicle to leave the parking lot will be a silver pickup, we first need to
a. assume that the color and the type of vehicle are mutually exclusive.
b. assume that the color and the type of vehicle are independent.
c. assume that the color and the type of vehicle are exhaustive.
d. simply multiply the two probabilities.
Question 2In the parking lot below me, 40 of the vehicles are silver, and about 25 of the vehicles are pickup trucks. The probability that the next vehicle to leave the parking lot will be a silver pickup is
a. .40
b. .65
c. .10
d. It can't be estimated without knowing that color and type of vehicle are independent.
Question 3I am looking down on a parking lot, and can see that about 10 of the cars are red and about 15 of the cars are blue. To estimate the probability that the next car to leave the lot will be red or blue, I would
a. add those two percentages.
b. multiply those two percentages.
c. count the number of green cars.
d. It can't be estimated from the information provided.
Question 4Following up on the preceding question, suppose that you found that 27 of the new hires were women. You would probably be justified in concluding that
a. there was discrimination against men.
b. there was discrimination against women.
c. there was no discrimination on the basis of gender.
d. we don't have enough information to even start to answer the question.
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