15
QuizMultiple Choice
Unit Test — Unit test
Question 15 • Stats B - Master – 926988
A small university has 200 first-year students. Historically at this university, 88% of first-year students graduate in four years. Assume that whether or not one student graduates is independent of whether or not another student graduates. Let X represent the number of first-year students who graduate in four years. What are the mean and standard deviation X?
Answer
A
Mu Subscript x Baseline = 100, Sigma Subscript x Baseline = 0.88
B
Mu Subscript x Baseline = 176, Sigma Subscript x Baseline = 21.12
C
Mu Subscript x Baseline = 176, Sigma Subscript x Baseline = 4.60
D
Mu Subscript x Baseline = 188, Sigma Subscript x Baseline = 24