SOLUTION: Please help me solve this problem: On a field trip, 4 students bring bag lunches. On the way there, the bag lunches get mixed up. What is the probability that exactly 1 student ge

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Question 576398: Please help me solve this problem:
On a field trip, 4 students bring bag lunches. On the way there, the bag lunches get mixed up. What is the probability that exactly 1 student gets his or her own bag lunch back?

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
On a field trip, 4 students bring bag lunches. On the way there, the bag lunches get mixed up. What is the probability that exactly 1 student gets his or her own bag lunch back?
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Binomial Problem with n = 4 and p(correct bag) = 1/4
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P(x = 1) = 4C1(1/4)(3/4)^3 = 0.4219
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Cheers,
Stan H.