A driver ’s age has something to do with his or her chance of getting into a fatal car crash. The bar graph shows the number of fatal vehicle crashes per 100 million miles driven for drivers of various age groups. For example, 25−year−old drivers are involved in 4.1 fatal crashes per 100 million miles driven. Thus, when a group of 25−year−old Americans have driven a total of 100 million miles, approximately 4 have been in accidents in which someone died.
The number of fatal vehicle crashes per 100 million miles, N, for drivers of age x can be modeled by the formula
Use the formula to solve Exercise.
What age groups are expected to be involved in 3 fatal crashes per 100 million miles driven? How well does the formula model the trend in the actual data shown in the bar graph?
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