Friday, July 31, 2009

Can someone please SHOW me how to do this problem......?

According to government data, 20% of employed women have never been married. To answer this question we randomly select 10 employed women, and determine their marital history.





a) what is the random variable X of interest here? Define X. Is X normal, binomial, or geometric?





b) If 10 employed women are selected at random, what is the probability that 2 or more fewer have never been married?





c) find the probability that the number of employed women who have never been married is within one standard deviation of the mean.

Can someone please SHOW me how to do this problem......?
x could be ANYTHING. 2. 89. 99999.345. 293615323424324723. a million. you get the idea.


No comments:

Post a Comment