3
QuizMultiple Choice
Binomial Random Variables
Question 3 • College Prep Math B - IC26
Tropical islands have many rainstorms during the afternoon heat. One particular tropical island has a 79% chance of a rainstorm on any given afternoon. Abraham is planning a weeklong stay on this tropical island. Let X represent the number of days there is an afternoon tropical storm that week. What are the mean and standard deviation of X?
Answer
A
Mu Subscript x Baseline = 1.47, Sigma Subscript x Baseline = 1.16
B
Mu Subscript x Baseline = 3.5, Sigma Subscript x Baseline = 1.16
C
Mu Subscript x Baseline = 5.53, Sigma Subscript x Baseline = 1.08
D
Mu Subscript x Baseline = 7, Sigma Subscript x Baseline = 3.5