A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that all the four bulbs are defective.

Related Mcqs:

A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that at least one bulb is good.

A. 6/63 B. 2/63 C. 125/126 D. 1/126...

A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If three marbles are picked at random, what is the probability that they are all blue?

A. 1/455 B. 2/455 C. 1/91 D. 4/455...

From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is_________?

A. 1/26 B. 3/52 C. 15/26 D. 11/26...

What is probability of drawing two clubs from a well shuffled pack of 52 cards?

A. 13/51 B. 1/17 C. 1/26 D. 13/17...

What are the chances that no two boys are sitting together for a photograph if there are 5 girls and 2 boys?

A. 1/21 B. 4/7 C. 2/7 D. 5/7...