If 2% of pipes manufactured by a company are defective, the probability that in a sample of 1000 pipes exactly 6 pipes are defective is

It is known that 10% of certain articles manufactured are defective.What is the probability that in a random sample of 12 such articles,9 are defective?

If ten percent of the tools produced in a factory turnout to be defective then the probability that in a sample of 10 tools chosen at random; exactly two will be defective by using poisson distribution is

In a box containing 60 bulbs 6 are defective . What is the probability that out of a sample of 5 bulbs (i) none is defective (ii) exactly 2 are defective ?

In a box containing 100 bulbs, 10 are defective. What is the probability that out of a sample of 5 bulbs, (i) none is defective and (ii) exactly 2 are defective ?

In the items produced by a factory there are 10% defective items A sample of 6 items is randomly chosen . Find the probability that this sample contains (i) exactly 2 defective items (ii) not more than 2 defective items (iii) at least 3 defective items .

There are 6% defective items in a large bulk of item.Find the probability that sample of 8 items will include not more than one defective items.

There are 10 defective bulbs in a group of 100 bulbs. If a sample of 8 bulbs are selected at random then find the probability that: (i) in this sample 3 bulbs are defective and 5 are non-defective. (ii) in this sample at least one bulb is defective.