A fair coin is tossed n times. If the probability of getting 4, 5 and 6 heads be in A.P, then n is equal to

Assertion (A) : A fair coin is tossed n times. If the probablities of getting 4,5 and 6 heads be in A.P then n is equal to 7,14 Reason (R ) : If .^(n)C_(r+1) , .^(n)C_(r ) , .^(n)C_(r+1) are in A.P then (n-2r)^(2)=n+2 The correct answer is

A fair coin is tossed 10 times. The probability of getting exactly 6 heads is -

A coin is tossed n times. The probability of getting exactly six heads in

A coin is tossed 5 times . What is the probability of getting 5 heads ?

A coin is tossed 2n times. The probability of getting head n times, is -

A fair coin is tossed 10 times. Find the probability of at most 6 heads .

A coin is tossed 6 times,What is the probability of getting exactly 4 heads.

If a fair coin is tossed 10 times, then find the probability of getting exactly 6 heads.

It a fair coin is tossed 6 times, what is the probability of getting at least 3 heads?

If a fair coin is tossed 10 times, Find the probability of At least 6 heads.