Q. 19

# Three cards

Given that three cards are drawn from a well-shuffled deck of 52 cards with replacement.

We know that there will 4 kings, 4 queens, 4 jacks present in a deck.

Let us find the probability of drawing the cards.

P(K) = P(Drawing King from 52 cards deck)

P(Q) = P(Drawing Queen from 52 cards deck)

P(J) = P(Drawing Jack from 52 cards deck)

We need to find the probability of drawing one king, one queen, one jack

There will be 6 cases or sequences for drawing these three cards

P(DKQJ) = P(Drawing King, queen and jack)

Since drawing cards are independent their probabilities multiply each other,

The required probability is .

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