The Alan Guttmacher Institute Abortion Provider Survey is a survey of all 238 known nonhospital abortion providers in the United States (Perspectives on Sexual and Reproductive Health, Jan./Feb. 2003). For one part of the survey, the 358 providers were classified according to case load (number of abortions performed per year) and whether they permit their patients to take the abortion drug misoprostol at home or require the patients to return to the abortion facility to receive the drug. The responses are summarized in the accompanying table. Suppose we select, at random, one of the 358 providers and observe the provider€™s case load (fewer than 50, or 50 or more) and home use of the drug (yes or no).

a. Find the probability that the provider permits home use the abortion drug.
b. Find the probability that the provider permits home use of the drug or has a case load of fewer than 50 abortions.
c. Find the probability that the provider permits home use of the drug and has a case load of fewer than 50 abortions.

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Number of Abortions Fewer than 50 Permit Drug at Home Yes No Totals 50 or More Totals 300 58 358 170 48 130 10 218 140