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Unformatted text preview: students that will want to enroll. Suppose the number of students wishing to enroll in a statistics class is normally distributed with mean 100 and a variance of 49 . Find the smallest classroom size sucient to hold all interested students with probability at least 90% . Show all your steps and explain your solution procedure. P ( X c ) = P X100 7 c100 7 = P Z c100 7 = c100 7 = 0 . 9 . (6) Observe (1 . 28) . 9, hence c100 7 = 1 . 28 c = 100 + 7 1 . 28 = 100 + 8 . 96 109 . (7) www.ece.drexel.edu/weber 1 May 14, 2010...
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 Spring '04
 Eisenstein

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