Give a quick stream of consciousness before answering the following question. In a certain animal population, for each of the first 3 months of life, the probability that an animal will die during that month is 1/10. For a group of 300 newborn members of the population, approximately how many would be expected to survive the first 3 months of life?\nOptions:\n(A) 219\n(B) 246\n(C) 252\n(D) 262\n(E) 270
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Number of newborns that can die in first month = 1/10 * 300 = 30\nSurvived = 270\nNumber of newborns that can die in second month = 1/10 * 270 = 27\nSurvived = 243\nNumber of newborns that can die in third month = 1/10 * 243 = 24\nSurvived = 219
The answer: (A).
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