A die is thrown thrice. If getting a four is considered a success, then the mean and variance of the distribution of the number of successes are

A dice is rolled thrice. If getting a four is considered a success, find the mean and the variance of the probability distribution of the number of success.

A die is thrown thrice, getting an even number is considered a success. What is the mean and variance of the Binomial distribution?

A pair of dice is thrown 4 times. If getting a doublet is considered a success, find the probability distribution of the number of successes and hence find its mean.

A pair of dice is thrown 200 times. If getting a sum of 9 is considered a success, find the mean and the variance of the number of success.

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

A dice is tossed 5 times . Getting an odd number is considered a success . Then the variance of distribution of number of successes is :

A die is thrown 20 times. Getting a number greater than 4 is considered a success. Find the mean and variance of the number of successes.