A car insurance company has determined that 7% of all drivers were involved in a car accident last year. Among the 11 drivers living on one particular street, 3 were involved in a car accident last year. If 11 drivers are randomly selected, what is the probability of getting 3 or more who were involved in a car accident last year?
A)0.4871
B)0.9683
C)0.0317
D)0.0370

Question

Quizplus · Accepted Answer

The problem can be modeled using a binomial distribution with n = 11 and p = 0.07. The probability of getting 3 or more drivers involved in an accident is 1 minus the probability of getting 0, 1, or 2 drivers involved. Calculating this gives approximately 0.0370.

A Car Insurance Company Has Determined That 7% of All