SOLUTION: In Chances: Risks and Odds in Everyday Life, James Burke claims that about 70% of all single men would welcome a woman taking the initiative in asking for a date. If 20 men are su

Algebra ->  Probability-and-statistics -> SOLUTION: In Chances: Risks and Odds in Everyday Life, James Burke claims that about 70% of all single men would welcome a woman taking the initiative in asking for a date. If 20 men are su      Log On


   

Question 1160128: In Chances: Risks and Odds in Everyday Life, James Burke claims that about 70% of all single men would welcome a woman taking the initiative in asking for a date. If 20 men are surveyed, what is the probability that:
a) at least 18 of the men will say yes?
b) fewer than 3 of the men will say yes?
c) none of the men will say yes?
d) at least 5 of the men will say no?

Found 2 solutions by saw, ikleyn:
Answer by saw(34) About Me  (Show Source):
You can put this solution on YOUR website!
70% of 20 men = 20*0.7 = 14 men
So the answer is (D) At least 5 of the men will say NO

Answer by ikleyn(52855) About Me  (Show Source):
You can put this solution on YOUR website!
.

Dear student @saw

from your post I see that 

    - you don't know the basics of the probability theory

    - you didn't get the meaning of this problem / (of this assignment)

    - you were not able to distinct questions from answers

          (to help you to make this distinction, let me say, that there is NO ANSWERS in this post --- there are QUESTIONS only).

I am afraid that with such level of knowledge,  there is  NOTHING  TO  DO  for you at this forum as a tutor.


        Did I say  "I am afraid" ? ---  Ooo,  not,  sorry.   I am  179%  confident.


You may visit it as a student.

In this quality, you may find a lot of useful/necessary knowledge here.