Exhibit 5-8
The student body of a large university consists of 60% female students. A random sample of 8 students is selected.
-Refer to Exhibit 5-8. What is the probability that among the students in the sample at least 7 are female?
A)0.1064
B)0.0896
C)0.0168
D)0.8936

Question

Quizplus · Accepted Answer

The probability of selecting at least 7 female students out of a sample of 8 students from a population where 60% are female is 0.1064. This can be calculated using the binomial distribution formula:P(X >= 7) = 1 - P(X < 7) = 1 - (P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6)) = 1 - (0.0039 + 0.0234 + 0.0702 + 0.1404 + 0.1966 + 0.2168 + 0.1966) = 0.1064

Exhibit 5-8 The Student Body of a Large University Consists of 60