A contest consists of predicting the results (win, defeat) of 8 matches played by the team. A person sent his entry by prdicting at random. The probability that his entry contains 4 correct predictions is

A contest consist of predicting the result win, draw or defeat of 7 football matches. A sent his entry predicting at random. The probability that his entry will contain exactly 4 correct predictions is

A contest consist of predicting the result win, draw or defeat of 7 football matches. A sent his entry predicting at random. The probability that his entry will contain exactly 4 correct predictions is

A contest consist of predicting the result win, draw or defeat of 7 football matches. A sent his entry predicting at random. The probability that his entry will contain exactly 4 correct predictions is

A contest consists of pedicting the results (win, draw or defeat) of 10 foot ball matches. Then the number of ways n which one entry contains at least 6 icorrect results is (A) 3^10 - sum_(r=0) ^5 .^10C_r 2^r (B) 30^10-sum_(r=1)^5 .^10C_r 2^r (C) sum_(r=0)^5 .^10C_r (D) sum_(r=6)^5 .^10C_r 3^r

A drawer contains 5 black socks and 4 blue socks well mixed. A person pulls out 2 socks at random from drawer. The probability that they match is

The results (win , loss or draw ) of 10 fooball matches are to be predicted . How many different forecasts can contain exactly 6 correct results ?

The Indian Cricket XI is to play 5 test matches against M.C.C Cricket XI in the next winter . The results of these 5 matches (win , loss or draw ) are to be predicted . How many different forecasts can contain all the 5 correct results ?

In a lottary, 16 tickets are sold and 4 prizes are awarded. If a person buys 4 tickets, what is the probability of his winning a prize ?