Question 193192
A teacher distributes randomly the 17 papers to her 17 students.
a)What is the probability that each student gets HIS paper?
Probability 16 get their correct paper: (1/2)^17= 0.000007629...
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b)What is the probability that ONLY Steven gets his paper?
P(1 right) = 17C1(1/2)^1(1/2)16) = 17*answer to "a" = 0.00012970...
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Cheers,
Stan H.