SOLUTION: the probability that 2 men in a group of 5 will still be working in 30 years is 3.5 What is the probability that 3 men in a group of 5 will still be working in 30 years? can yo

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: the probability that 2 men in a group of 5 will still be working in 30 years is 3.5 What is the probability that 3 men in a group of 5 will still be working in 30 years? can yo      Log On

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Question 241210: the probability that 2 men in a group of 5 will still be working in 30 years is 3.5
What is the probability that 3 men in a group of 5 will still be working in 30 years?
can you also provide the formula with the answer?
thanks
Answer by stanbon(48568) About Me  (Show Source):
You can put this solution on YOUR website!
the probability that 2 men in a group of 5 will still be working in 30 years is 0.35
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I find the underlying p-value for this result is p = 0.4
You should be able to find that with your binomial table.
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What is the probability that 3 men in a group of 5 will still be working in 30 years?
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So P(x=3) = 5C3(0.4)^3(0.6)^2 = 0.2304
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Cheers,
Stan H.