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

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

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

The probability of A and B achieving a target is 3/4 and 5/6 respectively. If both of them try then find the probability that at least one of them will achieve the target

Bag A contains 6 red and 4 black balls . One ball is drawn at random from the bag. Find the probability that it was a red ball.

Two students Anil and Ashima appeared in an examination. The probability that Anil will qualify the examination is 0.05 and that Ashima will qualify the examination is 0.10. The probability that both will qualify the examination is 0.02. Find the probability that : at least one of them will not qualify the examination.

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

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

A bag contains 6 red, 4 white and 8 blue balls. If three balls are drawn at random, find the probability that one is red, one is white and one is blue.

From a lot of 15 bulbs which include 5 defectives, a sample of 4 bulbs is drawn one by one with replacement. Find the probability distribution of the number of defective bulbs. Hence, find the mean of the distribution.