A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen

Question

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.

Options:

A . $$\frac{{62}}{{63}}$$

B . $$\frac{{125}}{{126}}$$

C . $$\frac{{1}}{{63}}$$

D . $$\frac{{1}}{{126}}$$

Answer: Option D

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