5
QuizMultiple Choice
Binomial Random Variables
Question 5 of 10 • College Prep Math B - IC26
In a family of five children, there is a 25% chance that each individual child has freckles. Children inherit freckles independently of one another. Let X represent the number of children in this family with freckles. What are the mean and standard deviation of X?
Answer
A
Mu Subscript x Baseline = 1.25, Sigma Subscript x Baseline = 0.97
B
Mu Subscript x Baseline = 1.25, Sigma Subscript x Baseline = 0.94
C
Mu Subscript x Baseline = 1.5, Sigma Subscript x Baseline = 0.19
D
Mu Subscript x Baseline = 2.5, Sigma Subscript x Baseline = 0.97