The table shows, for some particular year, a listing of several income levels and, for each level, the proportion of the population in the level and the probability that a person in that level bought a new car during the year. Given that one of the people who bought a new car during that year is randomly selected, find the probability that that person was in the indicated income category. Round your answer to the nearest hundredth. $50,000 and over

A. .24
B. .28
C. .22
D. .25


Answer: D

Mathematics

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Find the function with the given derivative whose graph passes through the point P.r'(?) = 4 + sec2 ?, P(?, 0)

A. r(?) = 4? + sec3 ?
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