Student: 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 700 newborn members of the population, approximately how many would be expected to survive the first 3 months of life?\nOptions:\n(A) 511\n(B) 546\n(C) 552\n(D) 562\n(E) 570.
Another student: Let's say, hmmm...

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Number of newborns that can die in first month = 1/10 * 700 = 70\nSurvived = 630\nNumber of newborns that can die in second month = 1/10 * 630 = 63\nSurvived = 567\nNumber of newborns that can die in third month = 1/10 * 567 = 56\nSurvived = 511 Final answer: (A).
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