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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