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 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 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

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

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

In how many ways can the results of the three football matches be predicted?

The results of 21 football matches (win,lose, draw)are to be predicted.The no.of different forecasts that can contain 19 wins is

The results of 6 cricket test mathes (win loss or draw are to be predicted . How many different forecasts can contain exactly 2 correct results ?

A bag contains 5 red,4 green and 3 black balls.Three balls are drawn out from it at random.Find the probability of drawing exactly 2 red balls.