Use the following information for questions:
Suppose that a student needs to buy 6 books for her history course. The number of books that she will be able to find used is a binomial random variable X with n = 6 and p = 0.30. In other words, the probability that she will find any given book used is 0.30, and is independent from one book to the next.
-What is the variance for the number of used books she will find, V(X)?
A) 0.54
B) 1.12
C) 1.26
D) 61.80

Question

Use the following information for questions:
 Suppose that a student needs to buy 6 books for her history course. The number of books that she will be able to find used is a binomial random variable X with n = 6 and p = 0.30. In other words, the probability that she will find any given book used is 0.30, and is independent from one book to the next.
-What is the variance for the number of used books she will find, V(X)?
A) 0.54
B) 1.12
C) 1.26
D) 61.80

Quizplus · Accepted Answer

The Answer of Use the following information for questions:
 Suppose that a student needs to buy 6 books for her history course. The number of books that she will be able to find used is a binomial random variable X with n = 6 and p = 0.30. In other words, the probability that she will find any given book used is 0.30, and is independent from one book to the next.
-What is the variance for the number of used books she will find, V(X)?
A) 0.54
B) 1.12
C) 1.26
D) 61.80

Use the Following Information for Questions