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If two coins are tossed five times, then...

If two coins are tossed five times, thenthe probability of getting 5 heads and 5 tails is

A

`(63)/(256)`

B

`(1)/(1024)`

C

`(2)/(205)`

D

`(9)/(64)`

Text Solution

Verified by Experts

The correct Answer is:
A
(a) Probability of getting head, `p=(1)/(2)` and probability of getting tail, `q=(1)/(2)`
Here `" " n=10`
`:.` Required probability `=P(X=5)`
`=10C_(5)((1)/(2))^(5)((1)/(2))^(5)=(10!)/(5.5!)xx((1)/(2))^(10)`
`=(252)/(1024)=(63)/(256)`
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