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Tardigrade
Question
Mathematics
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 :
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 :
147
98
Probability - Part 2
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A
1/64
B
9/64
C
36/64
D
60/64
Solution:
P
(
E
)
=
P
(
FFS
)
=
3/4.3/4.1/4