A box has 20 pens of which 2 are defective. Calculate the probability that out of 5 pens drawn one by one with replacement, at most 2 are defective.

A box has 100 pens of which 10 are defective. What is the probability that out of a sample of 5 pens drawn one by one with replacement at most one is defective ?

A box has 100 pens of which 10 are defective. The probability that out of a sample of 5 pens drawn one by one with replacement and atmost one is defective is

A box has 100 pens of which 10 are defective. The probability that out of a sample of 5 pens drawn one by one with replacement and atmost one is defective is

A box contains 100 pens of which 10 are defective. What is the probability that out of a sample of 5 pens drawn one by one with replacement at most one is defective? a. (9/(10))^5 b. 1/2(9/(10))^4 c. 1/2(9/(10))^5 d. (9/(10))^5+1/2(9/(10))^4

As box contains 100 pens of which 10 are defective.What is the probability that out of a sample of 5pens drawn one by one with replacement at most one is defective? ((9)/(10))^(5) b.(1)/(2)((9)/(10))^(4) c.(1)/(2)((9)/(10))^(5)d((9)/(10))^(5)+(1)/(2)((9)/(10))^(4)

If a box has 100 pens of which 10 are defective, then what is the probability that out of a sample of 5 pens drawn one by one with replacement atmost one is defective?

If a box has 100 pens of which 10 are defective, then what is the probability that out of a sample of 5 pens drawn one by one with replacement atmost one is defective?

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.

A box contains 100 bulbs, out of which 10 are defective. A sample of 5 bubls is drawn. The probability that none is defective is

A box contains 100 bulbs, out of which 10 are defective. A sample of 5 bulbs is drawn. The probability that none is defective is