In a lottery,there are 5 prized tickets and 995 blank tickets. A person buys a lottery ticket . Find the probability of his winning a prize
There are 500 tickets of a lottery out of which 10 are prize winning tickets. A person buys one ticket. Find the probability that he gets a prize winning ticket.
A man bought 15 out of 100 tickets of a lottery. If the reward for the winning ticket is Rs.1000, the expectation of the man would be: