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Multiplication Rule

A fair coin i...

Question

A fair coin is tossed n times. If the probability that head occurs 6 times is equal to the probability that head occurs 8 times, then n is equal to
[Kurukshetra CEE 1998; AMU 2000]

A

15

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B

14

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C

12

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D

7

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Solution

The correct option is B
14

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