Example 2.3.21 Cards are drawn at random, one at a time, from a well- shuffled pack of 52 playing cards until 2 aces are obtained for the first time. If N is the number of cards required to be drawn, then show that (и — 1)(52-п)/51-п) P({N = n}) = 2sns 50 %3D %3D 50 x 49 x 17 x 13

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Example 2.3.21 Cards are drawn at random, one at a time, from a well-
shuffled pack of 52 playing cards until 2 aces are obtained for the first time.
If N is the number of cards required to be drawn, then show that
P({N = n}) =
(n- 1)(52-n)(51 – n)
50 x 49 x 17 x 13
2sns 50
%3D
Transcribed Image Text:Example 2.3.21 Cards are drawn at random, one at a time, from a well- shuffled pack of 52 playing cards until 2 aces are obtained for the first time. If N is the number of cards required to be drawn, then show that P({N = n}) = (n- 1)(52-n)(51 – n) 50 x 49 x 17 x 13 2sns 50 %3D
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