Let-X-denote-the-number-of-times-heads-occur-in-n-tosses-of-a-fair-coin-If-P-X-4-P-X-5-and-P-X-6-are-in-AP-the-value-of-n-is-

Question Number 9904 by 215 last updated on 14/Jan/17

Let X denote the number of times heads

occur in n tosses of a fair coin . If P (X = 4),

P (X = 5) and P (X = 6) are in A P; the

value of n is