Home
Class 12
MATHS
A fair coin is tossed n times. Let X be ...

A fair coin is tossed n times. Let X be the times the heads occur. If P(X = 4), P(X = 5) and P(X = 6) are in A.P., then the value of n is

Text Solution

Verified by Experts

The correct Answer is:
7 or 14
Promotional Banner

Similar Questions

Explore conceptually related problems

An unbiased coin is tossed n times. Let X denote the number of times head occurs. If P(X=4), P(X=5) and P(X=6) are in A.P, then the value of n can be

An unbiased coin is tossed n times. Let X denote the number of times head occurs. If P(X=4), P(X=5) and P(X=6) are in A.P, then the value of n can be

If ^nC_4, ^nC_5, ^nC_6 are in A.P. then the value of n is

A fair coin is tossed n times and x be the number of heads. If P(x=4), P(x=5), P(x=6) are in A.P. then which of the following are correct. Statement-I : n = 7 Statement-II : n = 9 Statement-III : n = 2 Statement-IV : n = 14 correct statements are

If .^(n)C_(4),.^(n)C_(5), .^(n)C_(6) are in A.P., then find the value of n.

Let X denote the number of times heads occur in n tosses of a fair coin. If P(X=4),\ P(X=5)\ a n d\ P(X=6) are in AP; the value of n is 7, 14 b. 10 , 14 c. 12 ,7 d. 14 , 12

A fair coin is tossed 9 times the probability that at least 5 consecutive heads occurs is

For a binomial variate X , if n = 3 and P(X =1) = 12 P(X =3) , then the value of p is

A fair coin is tossed four times. Let X denote the number of heads occurring. Find the probability distribution, mean and variance of X.

A fair coin is tossed 99 times. If X is the number of times heads occur, then P(X=r) is maximum when r is 49 , 50 b. 50 , 51 c. 51 , 52 d. none of these