In a hurdle race a player has to cross 10 hurdles . The probability that he will clear each hurdle is 5/6. What is the probability that he will knock down less than 2 hurdles ?

In a hurdle race, a player has to cross 10 hurdles. The probability that he will clear each hurdle is (5)/(6) . What is the probability that he will knock down fewer than 2 hurdles?

The probability that a student selected at random from a class will pass in Mathematics is 2/3 and the probability that he passes in Mathematics and English is 1/3 . What is the probability that he will pass in English if it is known that he has passed in Mathematics ?

The probability that a dealer will sell at least 20TV sets during a day is 0.45 and the probability that he will sell less than 24TV sets is 0.74 . The probability that he will sell 20,21,22 or 23 TV sets during the day is

The probability that a person will get an electrification contract is (3)/(5) and the probability that he will not get plumbing contract is (5)/(8) . The probability of getting atleast one contract is (5)/(7) . What is the probability that he will get both ?

There are 5% defective items in a large bulk of items. What is the probability that a sample of 10 items will include not more than one defective items?

There are 5% defective items in a large bulk of items. What is the probability that a sample of 10 items will include not more than one defective item?

Whenever horses a , b , c race together, their respective probabilities of winning the race are 0.3, 0.5, and 0.2 respectively. If they race three times, the probability that the same horse wins all the three races, and the probability that a , b ,c each wins one race are, respectively. a. 8//50 ,9//50 b. 16//100 ,3//100 c. 12//50 , 15//50 d. 10//50 ,8//50

Two persons A and B get together once a weak to play a game. They always play 4 games . From past experience Mr. A wins 2 of the 4 games just as often as he wins 3 of the 4 games. If Mr. A does not always wins or always loose, then the probability that Mr. A wins any one game is (Given the probability of A's wining a game is a non-zero constant less than one).

In a hurdle race, a runner has probability p of jumping over a specific hurdle. Given that in 5 trials, the runner succeeded 3 times, the conditional probabilit that the runner had succeeded in the first trial is

5 players of equal strength play one each with each other. P(A)= probability that at least one player wins all matches he (they) play. P(B)= probability that at least one player losses all his (their) matches.