Answer:
5!= 120
Step-by-step explanation:
Answer:
(a) 2.22
(b) 1.3986
(c) 1.183
Step-by-step explanation:
Let <em>X</em> denote the number of women who consider themselves fans of professional baseball.
The proportion of women who consider themselves fans of professional baseball is, <em>p</em> = 0.37.
A random sample of <em>n</em> = 6 women are selected and each was asked if she considers herself a fan of professional baseball.
Each woman's reply is independent of the others.
The random variable <em>X</em> thus follows a binomial distribution with parameters <em>n</em> = 6 and <em>p</em> = 0.37.
(a)
Compute the mean of the binomial distribution as follows:

(b)
Compute the variance of the binomial distribution as follows:

(c)
Compute the standard deviation of the binomial distribution as follows:

Solution is (2.667,0) but x=2.667
The difference will be

.
Remember that parentheses are needed for the second polynomial because the negative is distributed to all of its terms.