An experiment succeeds twice as often as it fails. Find the probability that in the next six trials, there will be atleast 4 successes.

An experiment succeeds twice as often as it fails.Find the probability that in the next six trails there will be at least 4 successes.

Consider the following statements I : An experiment succeeds twice as often as it fails. Then, the probability that in the next six trials, there will be atleast 4 successes is 31/9(2/3)^(4) II : The number of times must a man toss a fair coin so that the probability of having atleast one head is more than 90% is 4 or mor than 4.

An experiment succeeds thrice as often as it fails.Find the probability that in the next five trials,there will be atleast 3 successes.

An experiment succeeds twice as often as it fails. The probability that in the next six trails threr are at most 2 successes, is

An experiment succeeds twice as often as it fails. The probability that in 4 trials there will be at least three successes is

The chance of success of an event is 3/4, find the probability that in six trials there will be four or more successes.

A coin is tossed twice. Find the probability of getting atleast one tail.

A coin is tossed twice, then find the probability that a head is obtained atleast once.

An unbiased die is thrown twice.Find the probability distribution of the number of sixes.

If there are two children in a family , find the probability that there is atleast one girl in the family .