[" 23MATHS I Single "],[" A die is rolled.If "X" denotes the number of positive divisors of the outcome then the range "],[" of the random variable "X" is "]

A pair of dice is rolled twice. Let X denote the number of times, 'a total of 9 is obtained'. Find the mean and variance of the random variable X.

If the variance of the random variable X is 5 ,then variance of the random variable -3X is

Suppose a pair of unbiased dice is rolled once if X denotes the total score of two dice write down The values taken taken by random variable X

A die is rolled . If the outcome is an odd number what is the probability that it is prime ?

A biased die is such that P(4)=1/10 and other scores being equally likely. The die is tossed twice. If X is the 'number of four seen', then find the variance of the random variable X.

A biased die is such that P(4) = (1)/(10) and other scores being equally likely. The die is tossed twice. If X is the 'number of fours seen', then find the variance of the random variable X.

A die is rolled.If the outcome is an odd number,what is the probability that it is prime?

Let a pair of dice he rolled thrice and the random variable X be the number of doublets. Find the mean of the random variable.

Let a pair of dice he rolled thrice and the random variable X be the number of doublets. Find the mean of the random variable.

A die is rolled. If the outcome is an odd number, what is the probability that it is prime?