Question 1000341
The Census Bureau’s Current Population Survey shows that 28% of individuals, ages 25 and older, have completed four years of college. For a sample of 15 individuals, ages 25 and older, answer the following questions:
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Binomial Problem with n = 15 and p(completed college) = 0.28
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a. What is the probability four 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 three or more will have completed four years of college?
P(3<= x <=15) = 1 - P(0<= x <=2) = 1 - binomcdf(15,0.28,2) = 0.8355
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Cheers,
Stan H.
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