單項(xiàng)選擇題The student body of a large university consists of 60%female students.A random sample of 8 students is selected.What is the probability that among the students in the sample exactly two are female?()

A.0.0896
B.0.2936
C.0.0413
D.0.0007


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1.單項(xiàng)選擇題A weighted average of the value of a random variable, where the probability function provides weights is known as()

A.a probability function
B.a random variable
C.thee xpected value
D.random function