Exhibit 5-12
The police records of a metropolitan area kept over the past 300 days show the following number of fatal accidents.
-Refer to Exhibit 5-12. What is the probability that in a given day there will be at least 1 accident?
A)0.15
B)0.85
C)at least 1
D)0.5

Question

Exhibit 5-12
The police records of a metropolitan area kept over the past 300 days show the following number of fatal accidents. 
-Refer to Exhibit 5-12. What is the probability that in a given day there will be at least 1 accident?
A)0.15 
B)0.85 
C)at least 1 
D)0.5

Quizplus · Accepted Answer

The probability of at least one accident is equal to the complement of the probability of no accidents. The total number of days is 300, and the number of days with no accidents is 45. Therefore, the probability of no accidents in a given day is 45/300 = 0.15. The complement of this probability is the probability of at least one accident, which is 1 - 0.15 = 0.85. Thus, the best choice is B.

Exhibit 5-12 the Police Records of a Metropolitan Area Kept Over the Over