A player tosses a coin and score one point for every head and two points for every tail that turns up. He plays on until his score reaches or passes n. `P_(n)` denotes the probability of getting a score of exactly n.
The value of `P(n)` is equal to

A player tosses a coin and score one point for every head and two points for every tail that turns up. He plays on until his score reaches or passes n. P_(n) denotes the probability of getting a score of exactly n. The value of P_(n)+(1//2)P_(n-1) is equal to

A player tosses a coin and score one point for every head and two points for every tail that turns up. He plays on until his score reaches or passes n. P_(n) denotes the probability of getting a score of exactly n. The value of P_(n)+(1//2)P_(n-1) is equal to

A player tosses a coin and score one point for every head and two points for every tail that turns up. He plays on until his score reaches or passes n. P_(n) denotes the probability of getting a score of exactly n. Which of the following is not true ?

A player tosses a coin. He sets one point for head and 2 points for tail. He plays till he gets sum of points equal to n. If p_(n) be the probability that his score becomes n, then

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

A person whose hobby is tossing a fair coin is to score one point for every tail and two points for every head. The person goes on tossing the coin, til his score reaches 100 or exceeds 100. Then the probability that his score attains exactly 100 is

A coin is tossed n times. The probability of getting head at least once is more than 0.8 , then the value of n is

A coin is tossed n xx,if the probability of getting at least one head is atlest 99% then the minimum value of n is