A mawn takes a step forward with probability 0.4 and backward with probability 0.6 find the probability that the end of eleven steps he is just one step away from the starting point.

A man takes a step forward with probability 0.4 and backward with probability 0.6. Find the probability that at the end of eleven steps he is one step away from the starting point.

The probability of happeining an event A in one trial is 0.4. Find the probability that the event A happens at least once in three independent trials.

The probability that a student entering a university will gradute is 0.4. Find the probability that out of 3 students of the university none will gradute.

The probability that a student entering a university will gradute is 0.4. Find the probability that out of 3 students of the university all will gradute.

The probability that a student entering a university will gradute is 0.4. Find the probability that out of 3 students of the university only one will gradute.

Two sets of candidates are competing for the position on the board of directors of a company. The probabilities that the first and second sets will win are 0.6 and 0.4 respectively. If the first set wins, the probability of introducing a new product is 0.8 and the corresponding probability if the second set wins is 0.3. What is the probability that the new product will be introduced ?

Two groups are competing for the positions of the board of directors of a corporation. The probabilities that the first and the second groups will win are 0.6 and 0.4 respectively. Further, if the first group wins, the probability of introducing a new product is 0.7 and the corresponding probability is 0.3 if the second group wins. Find the probability that the new product is introduced was by the second group.

A bag contains 4 red and 4 black balls. Another bag contains 2 red and 6 black balls. One of the bags is selected at random and a ball is drawn from the bag which is found to be red. Find the probability that the ball is drawn from the first bag.

Two consecutive drawings of a digit are made at random from the ten digits 0, 1, 2, …, 9. Find the probability that the product of the chosen digits is zero, given that the first drawn digit is replaced before the second drawing.

Two groups of students are arranging an picnic near a lake.The probability of the 1st group of getting the picnic spot is 0.6 and that of the second group is 0.4. If the 1st group get the spot, the probability of doing boating is 0.8 and that of 2nd group is 0.3 what is the probability of boating? Given that boating is done, find the probability that the 2nd group does the picnic.