The expected value of the number of points, obtained in a single throw of die, is

Let X be the random variable of the number of points obtained in single throw of an unbiased die. Then, the value of barX is -

1.choose the correct answer from the given alternatives:1. if X be the random variable of the no. of points obtained in a single throw of unbiased die , then the value of barX will be

Probability of getting 6 in a single throw of a die is

Probability of getting 8 in a single throw of die is :

Probability of getting 3 in a single throw of a die is :

Find the variance of the number obtained on a throw of an unbiased die.

Find the variance of the number obtained on a throw of an unbiased die.