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Matching pegs (Posted on 2016-06-08) Difficulty: 3 of 5
There are 20 garments on a clothes line each garment supported by two pegs.
The pegs were randomly picked out of a set of 20 green and 20 red pegs.

What is the probability that n garments are supported by two pegs of the same colour?

Provide a list for 21 possible values of n.

Source: Australian Joe Kupka

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
step-by-step diffusion and coalescence of the probabilitiesCharlie2016-06-08 13:27:03
Solutioncomputer assisted solutionCharlie2016-06-08 13:19:16
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