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 21 football matches (win, lose or draw) are to the predicted. The number of forecasts that contains exactly 18 correct results is (i) .^21C_3(2^18)^ (ii) .^21C_3(2^3) (iii) (3^21)-2^18 (iv) .^21C3(3^21)-2^18

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 ?

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 ?

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 ?

the results of 11 chess matches (as win , lose or draw ) are to be forecast . Out of all posible forecasts, the number of ways in which 8 correct and 3 incorrect results can be forecast is

the results of 11 chess matches (as win , lose or draw ) are to be forecast . Out of all posible forecasts, the number of ways in which 8 correct and 3 incorrect results can be forecast is

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

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