A box contains 10 good articles and 6 defective articles. One item is drawn at random. the probability that it is either good or has a defect, is a. 64/64            b. 49/64            c. 40/64          d. 24/64

A box contains 50 articles of which 4 are defective. One article is taken at random from the box. Find the probability of that article is not defective. .

There are 6 defective items in a sample of 20 items, one item is drawn at random. The probability that it is a non - defective item is …………………. .

A lot of 25 bulbs contain 5 defective ones. One bulb is drawn at random from the lot. What is the probability that the bulb is good.

There are 6 defective items in a sample of 20 items. One item is drawn at random. The that it is probability a non-defective item is

Out of 15 articles in a box, three of. them are defective. If 5 articles of them are drawn at random, what is the probability that at least one article are defective.

A box contains 4 defective and 6 good bulbs. Two bulbs are drawn at random without replacement. Find the probability that the both the bulbs drawn are good.

A fair coin is tossed 10 xx.Then the probability that two heads do not occur consecutively is 7/64 b.1/8 c.9/16 d.9/64

In a box containg 100 bulbs , 64 are defective probabaility that in a sample of 5 bulbs ,none is defective , is

Three lots contain respectively 4%,5% and 10% defective articles.One article is chosen at random from each lot.Find the probability of getting (a) exactly one defective (b) at least one defective article among the three article drawn