A die is thrown 7 times. What is the chance that an odd number turns up (i)               exactly 4 times (ii)             at least 4 times

A die is thrown two times.

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

A die is thrown 31 times. The probability of getting 2,4 or 5 at most 15 times is

A die is thrown twice . What is the probability that (i) 5 will not come up either time (ii) 5 will come up atleast once ?

The probability that Mr. Q hits a target at any trial is 1/4 . Suppose he tries at the target 10 times. Find the probability that he hits the target (i) exactly 4 times (ii) at least one time.

A die is thrown three times, if the first throw is a four, find the chance of getting 15 as the sum.

A dice is thrown twice. What is the probability that (i) 5 will not come up either time? (ii) 5 will come up at least once? [Hint : Throwing a dice twice and throwing two dice simultaneously are treated as the same experiment].

A die is thrown 120 times and getting 1 or 5 is considered a success find the mean and variance of the number success