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If each voter in California is known to be in favor of Proposition 65 with a...

If each voter in California is known to be in favor of Proposition 65 with a probability of ?.?, what is the probability that exactly ?0 out of ?00 voters in a certain district votes in favor of the proposition?

Math   Statistics-And-Probability   
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Answer #1

Given each voter in California is known to be in favor of Proposition 65 with a probability of .

The number of voters out of is in favor of the proposition has Binomial distribution.

The PMF of is

.

The probability that exactly ?0 out of ?00 voters in a certain district votes in favor of the proposition is

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