It is know that a box of 8 batteries contains 3 defective pieces and a preson randomly selects 2 batteries form this box. Find the probability distrubtion of the number of defective batteries.

A box contains 13 bulbs out of which 5 are defective. 3 bulbs are randomly drawn, one by one without replacement, from the box. Find the probability distribution of the number of defective bulbs.

It is know that a box of 600 electric bulbs contains 12 defective bulbs.One bulb is taken out at random from this box.What is the probability that it is a non-defective bulb?

It is know that a box of 600 electric bulbs contains 12 defective bulbs. One bulb is taken out at random from this box. What is the probability that it is a non-defective bulb?

It is know that a box of 600 electric bulbs contains 12 defective bulbs. One bulb is taken out at random from this box. What is the probability that it is a non-defective bulb?

From a box containing 32 bulbs out of which 8 are defective 4 bulbs are drawn at random successively one after anoter with replacement. Find the probability distribution of the number of defective bulds.

A box contains 16 bulbs out of which 4 bulbs are defective. 3 bulbs are drawn one by one from the box without replacement. Find the probability distribution of the number of defective bulbs.

It is known that a box of 100 electric bulbs contains 8 defective bulbs. One bulb is taken out at random from the box. What is the probability that the bulb drawn is (i) defective? (ii) non -defective?

A box contains 5 defective and 15 non -defective bulbs two bulbs are chosen at random . Find the probability that both the bulbs are non - defective .

It is known that a box of 200 electric bulbs contains 16 defective bulbs. One bulb is taken out at random from the box. What is the probability that the bulb drawn is (i) defective, (ii) non-defective?