In a pack of 52 playing cards two cards are drawn at random simultaneously if the number of black cards drawn is a ranodm variable find the valties of the random variable and number of points in its inverse images

In a pack of 52 playing cards, two cards are drawn at random simultaneously. If the number of black cards drawn is a random variable, find the values of the random variable and number of points in its inverse images.

An urn contains 5 mangoes and 4 apples. Three fruits are taken at random. If the number of apples taken is a random variable, then find the values of the random variable and number of points in its inverse images.

Suppose X is the number of tails occurred when three fair coins are tossed once simultaneously. Find the values of the random variable X and number of points in its inverse images .

Suppose X is the number of tails occurred when three fair coins are tossed once simultaneously. Find the values of the random variable X and number of points in its inverse images.

Suppose two coins are tossed once if X denotes the number of heads .find The valuses of the random variable and the number of elements in its inverse image

Suppose two coins are tossed once. If X denotes the number of talls (i) write down the sample space (ii) find the inverse image of 1 (iii) the values of the random variable and number of elements in its inverse images .

Two cards are drawn simultaneously from a well shuffled pack of 52 cards. Find the mean, variance and standard deviation of the number of kings.

Suppose that two cards are drawn at random from a deck of cards. Let X be the number of aces obtained. then the value of E(X) is

Four defective oranges are accidentally mixed with sixteen good ones. Two oranges are drawn at random from the mixed lot. If the random variable 'X' denotes the number of defective oranges, then find the values of 'X' and number of points in its inverse image.