statistics and probability

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Consider a lottery in which a draw includes 2 different integer numbers with values from 1 to 6. In 2 independent draws, X numbers may coincide. Find the pmf of rv X. Hints: Use the multinomial formula to count the different fates of the 6 numbers in the 2 draws. What are your ni ' s? What do they sum up to? Remember the range of X.

Please see the hint in the graph!!!

  • 6 years ago
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