Unformatted text preview: of an 80% chance that an admitted student will attend Harvard, what is the probability that Harvard will not have enough dormitory room spots for the freshman students? Solution: We will use normal approximation to solve this question. First let’s verify the conditions: np = 1640 > 10 and n (1p ) = 2050(0 . 2) = 410 > 10 So X is approximately N ( μ X ,σ X ) = N (1640 , 18 . 11). P ( X > 1655) = P ( Z > 16551640 18 . 11 ) = P ( Z > . 828) = 0 . 204 . Page 1 of 1...
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 Spring '11
 Grandal
 Statistics, Normal Distribution, Standard Deviation, 80%, dormitory room spots

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