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  4. A person draws a card from a pack of 52 cards, replaces it shuffles the pack. He continues doing this till he draws a spade. The probability that he will fail exactly the first two times is :

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Q. A person draws a card from a pack of 52 cards, replaces it & shuffles the pack. He continues doing this till he draws a spade. The probability that he will fail exactly the first two times is :

Probability - Part 2

Solution:

$P(E) = P(FFS) = 3/4.3/4.1/4$