a box contains 100 marbles. Five of the marbles are purple and the rest are green. if eight marbles are drawn without replacement ,what is the probability of obtaining exactly two purple marbles?

Answer 1

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

5/100 * 4/99 * 95/98 * 94/97 * 93/96 * 92/95 * 91/94 * 90/93 = ?

Or you could explore combinations and permutations.

https://www.mathsisfun.com/combinatorics/combinations-permutations.html