SOLUTION: A committee of 9 members is voting on a proposal. Each member casts a yea or nay vote. On a random voting basis, what is the probability that (a) the final vote count is unanimous?

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Question 520645: A committee of 9 members is voting on a proposal. Each member casts a yea or nay vote. On a random voting basis, what is the probability that (a) the final vote count is unanimous? (b) the first 4 votes are yea? The last 5 votes are nay?
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
a)2*0.5^9=.001953*2=.0039
b).5^4=.0625
c).5^5=.0313
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Ed