Q.

A fair coin is tossed 12 times. The probability of getting as many heads in the first 6 tosses as in the last 6 tosses is

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a

1212

b

1211

c

12C6212

d

10C5212

answer is C.

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Detailed Solution

6C0266C026+6C1266C126+.........+6C626.6C626=12C6212
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A fair coin is tossed 12 times. The probability of getting as many heads in the first 6 tosses as in the last 6 tosses is