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At one large midwest university, about 40% of the college seniors have a social science major....

At one large midwest university, about 40% of the college seniors have a social science major. Fourteen seniors are selected at random. Let X denote the number that have a social science major. Determine:

A) P[ 3 ≤ X ≤ 9 ]

B) P[ 3 < X ≤ 9 ]

C) P[3 < X < 9 ]

D) E(X)

E) sd(X)

Math   Statistics-And-Probability   
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