## Question

A fair coin is tossed n times. If the probability that head occurs 6 times is equal to the probability that occurs 8 times, then value of *n* is

### Solution

14

Let X be the number of times head occurs. Then X follows a binomial distribution with parameter n and p = 1/2. We are given that

*P*(*X* = 6) =*P*(*X* = 8).

#### SIMILAR QUESTIONS

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