Five defective bolts are accidently mixed with twenty good ones. If four bolts are drawn at random from this lot, find the probability distribution of the number of defective bolts.

Five defective mangoes are accidentally mixed with 15 good ones. Four mangoes are drawn at random from this lot. Find the probability distribution of the number of defective mangoes.

Five defective mangoes are accidently mixed with 15 good ones.Four mangoes are drawn at random from this lot.Find the probability distribution f the number of defective mangoes.

Five defective mangoes are accidenty mixed with 15 good ones. Four mangoes are drawn at random from this lot. Then the probabilty distribution of the number of defective mangoes is

Five defective mangoes are accidenty mixed with 15 good ones. Four mangoes are drawn at random from this lot. Then the probabilty distribution of the number of defective mangoes 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 iverse image.

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.

Five bad oranges are accidently mixed with 20 good ones.If four oranges are drawn one by one successively with replacement,then find the probability distribution of number of bad oranges drawn.Hence find the mean and variance of the distribution.

Five bad oranges are accidently mixed with 20 good ones. If four oranges are drawn one by one successively with replacement, then find the probability distribution of number of bad oranges drawn. Hence find the mean and variance of the distribution.

3 defective bulbs are mixed up with 7 good ones. 3 bulbs are drawn at random. Find the probability distribution of the defective bulbs.

Four defective oranges are accidently mixed with sixteen good ones and by looking at them it is not possible to differentiate between them. Three oranges are drawn at random from the lot. Find the probability distribution of X, the number of defective oranges.