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.

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.

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.

A die is thrown 4 times. Find the probability of getting at most two 6.

Find the probability of getting at least one tail in 4 tosses of a coin.

If x in[0,6] , the probability that the expression x^(2)-7x+10 ge 0 is

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.

In a test an examine either guesses or copies or knows the answer to a multiple choice question with four choices. The probability that he makes a guess is 1/3 and the probability that the copies the answer is 1/6. The probability that his answer is correct, given that he copied it, is 1/8. Find the probability that he knew the answer to the question, given that he correctly answered it.

The probability that a married man watches certain TV show is 0.4 and the probability that a married woman watches the show is 0.5. The probability that a man watches the show, given that his wife does, is 0.7. Then

The probability that a married man watches certain TV show is 0.4 and the probability that a married woman watches the show is 0.5. The probability that a man watches the show, given that his wife does, is 0.7. Then