In: Statistics and Probability
Assume that on a typical Saturday evening, 5% of all drivers are intoxicated, and the probability that an intoxicated driver is involved in a car accident is 0.2. Police estimate that of all car trips on a Saturday evening end with an accident. (Please note 2% = 0.02)
a. The number 0.2 corresponds to which probability?
(A) Pr[car accident and intoxicated]
(B) Pr[car accident or intoxicated]
(C) Pr[car accidentſintoxicated]
(D) Pr[car accident and not intoxicated] (E) Pr[intoxicated car accident]
b. What is the probability a driver is intoxicated and involved in a car accident?
c. What is the probability that a driver is not involved in a car accident?
d. What is the probability that a driver involved in a car accident is intoxicated?
2. Given that the probability of an intoxicated driver involved in a accident is 0.2 ,
a] so the number 0.2 corresponds to
b] the probability that a driver is intoxicated and met with an accident is
c] probability that a driver is not involved in car accident is
d] the probability that a driver involved in a car accident is intoxicated is