A survey of entering students showed that 12 percent of law school students took a prob- ability course as undergraduates. After grad- uation, 11 percent of law school students will earn $250,000, 73 percent will earn $75,000, and 16 percent will be unemployed. Of the law students who took a probability course, 52 percent will earn $250, 000 and 48 percent will earn $75, 000. What is the conditional proba- bility a law student took a probability course, given that their starting salary is $75,000.

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