A mandatory seatbelt law ends up raising the number of traffic fatalities if it lowers fatalities per accident from 0.11 to 0.08 while raising the number of accidents per period from 100,000 to any more than

Question

Quizplus · Accepted Answer

Let the number of accidents per period be x.

The number of fatalities before the law = 0.11 * 100,000 = 11,000

The number of fatalities after the law = 0.08 * x

For the law to be effective in reducing the overall number of fatalities,

11,000 > 0.08x

x > 137,500

Therefore, the number of accidents per period must be more than 137,500 for the law to reduce the overall number of fatalities.

Among the answer choices, only C satisfies this condition. Therefore, the answer is C.

A Mandatory Seatbelt Law Ends Up Raising the Number of Traffic