Cards are drawn one by one at random from a well – shuffled full pack of 52 playing cards until 2 aces are obtained to be drawn, first time. If N is the number of cards required to be drawn, then show that Pr {N = n} = (n – 1) (52 – n) (51 – n)/50 x 49 x 17 x 13 where 2 ≤ n ≤ 50

Hrishant Goswami , 10 Years ago

Grade 10