9
QuizMultiple Choice
Binomial Random Variables
Question 9 of 10 • College Prep Math B - IC26
A coin is weighted so that the probability of getting heads is . Suppose you toss this coin 15 times. Let X represent the number of heads. What are the mean and standard deviation of X?
Answer
A
Mu Subscript x Baseline = 0.67, Sigma Subscript x Baseline = 0.88
B
Mu Subscript x Baseline = 7.5, Sigma Subscript x Baseline = 2.33
C
Mu Subscript x Baseline = 7.5, Sigma Subscript x Baseline = 3.33
D
Mu Subscript x Baseline = 10, Sigma Subscript x Baseline = 1.83