An urn contains 4 white and 6 red balls. Four balls are drawn at random from the urn. Find the probability distribution of the number of white balls.

A urn contains 4 white and 6 red balls. Four balls are drawn at random (without replacement) from the urn. Find the probability distribution of the number of white balls.

An urn contains 4 white and 3 red balls. Three balls are drawn at random from the urn with replacement. Find the probability distribution of the number of red balls.

An urn contains 4 white and 3 red balls.Three balls are drawn at random from the urn with replacement.Find the probability distribution of the number of red balls.

An urn contains 3 white and 6 red balls. Four balls are drawn one by one with replacement from the urn. Find the probability distribution of the number of red balls drawn. Also find mean and variance of the distribution.

An urn contains 3 white and 6 red balls.Four balls are drawn one by one with replacement from the urn.Find the probability distribution of the number of red balls drawn.Also find mean and variance of the distribution.

An urn contains 3 white and 6 red balls. 4 balls are drawn one by one with replacement from the urn.Find the probability distribution of the number of red balls drawn. Also find mean and variance of the distribution.

An urn contains 4 white and 3 red balls. Three balls are drawn with replacement from this urn. Then, the standard deviation of the number of red balls/drawn is

An urn contains 7 white and 3 red balls two balls are drawn together at random from this urn compute the probability that neither of them is white find also the probability of getting one white and one red ball hecne compute the expecteed numbr of white balls

An urn contains 7 white, 5 black and 3 red balls. Two balls are drawn at random, Find the probability that : one ball is white.

An urn contains 7 white, 5 black and 3 red balls. Two balls are drawn at random, Find the probability that : both the balls are red.