1. Of the PhD’s in mathematics/statistics awarded to US citi
1. Of the PhD’s in mathematics/statistics awarded to US citizens, about 35% are earned by women. Suppose a sample of 400 mathematics/statistics PhD’s is taken.(a) How many in the sample are expected to be men? Answer: 260(b) What is the probability that at least 140 are women? Answer: 1/2(c) What is the probability that fewer than 200 are men? Answer: about 0 (5.6.9)
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