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A coin is tossed 2n times. The change th...

A coin is tossed 2n times. The change that the number of times one gets head is not equal to the number of times one gets tail is

A

`""^(2n)C_(n) .((1)/(2))^(2n)`

B

`1-""^(2n )C_(n)`

C

`1-""^(2n).((1)/(4))^(n)`

D

none of these

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The correct Answer is:
C
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