Question 1019909
The Census Bureau's Current Population Survey shows 28 percent of individuals, ages 25 and older, have completed four years of college (The New York Times Almanac, 2006). For a sample of 15 individuals, ages 25 and older, answer the following questions:
Binomial Conditions with p = 0.28 and n = 15
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a) What is the probability 4 will have completed four years of college?
P(x = 4) = 15C4*0.28^4*0.72^11 = binompdf(15,0.28,4) = 0.2262
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b) What is the probability 3 or more will have completed four years of college?
P(3 <= x <= 15) = 1 - binomcdf(15,0.28,2) = 0.8355
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Cheers,
Stan H.
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