SOLUTION: A club with 25 members is voting on a proposal. A group of 6 has decided to vote in favor of the proposal while each of the rest of the members vote independently with a chance of

Algebra.Com
Question 807636: A club with 25 members is voting on a proposal. A group of 6 has decided to vote in favor of the proposal while each of the rest of the members vote independently with a chance of 47% in favor of the proposal. What are the chances that the proposal will get the majority vote?
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
A club with 25 members is voting on a proposal. A group of 6 has decided to vote in favor of the proposal while each of the rest of the members vote independently with a chance of 47% in favor of the proposal. What are the chances that the proposal will get the majority vote?y
--------------------
A majority vote would be 13 for and 12 against.
--------
Need to get 13-6 = 7 of the 19 remaining votes.
---------
Binomial Problem with n = 19 and p(for) = 0.47
------
P(x = 7) = 19C7(0.47)^7*0.53^(12) = binompdf(19,0.47,7) = 0.1254
====================
Cheers,
Stan H.
====================

RELATED QUESTIONS

A club with 25 members is voting on a proposal. A group of 4 has decided to vote in favor (answered by stanbon)
A club with 31 members is voting on a proposal. A group of 6 has decided to vote in favor (answered by stanbon)
A club with 27 members is voting on a proposal. A group of 5 has decided to vote in favor (answered by lynnlo)
A club with 27 members is voting on a proposal. A group of 4 has decided to vote in favor (answered by ewatrrr)
A club with 29 members is voting on a proposal. A group of 5 has decided to vote in favor (answered by ewatrrr)
A club with 23 members is voting on a proposal. A group of 5 has decided to vote in favor (answered by stanbon,ewatrrr)
I’ve been stuck on this for ever! Can someone explain this to me? Q: A club with 29... (answered by richwmiller)
A committee of 9 members is voting on a proposal. Each member casts a yea or nay vote. On (answered by edjones)
1. A community of 9 members is voting on a proposal. Each member casts a yea or ney... (answered by stanbon)