SOLUTION: ​38% of women consider themselves fans of professional baseball. You randomly select six women and ask each if she considers herself a fan of professional baseball. Complete

Algebra ->  Probability-and-statistics -> SOLUTION: ​38% of women consider themselves fans of professional baseball. You randomly select six women and ask each if she considers herself a fan of professional baseball. Complete       Log On


   

Question 1120597: ​38% of women consider themselves fans of professional baseball. You randomly select six women and ask each if she considers herself a fan of professional baseball. Complete parts​ (a) through​ (c) below.
​(a) Find the mean of the binomial distribution.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
The mean is np, where n here is 6 and p=0.38, so the mean or expected value is 2.28 women.
The variance is np(1-p) or 2.28*62=1.41, and the sd is the sqrt of that, or 1.19 women.