An urn contains2 red and8 green balls. The balls are chosen at random, one by one, from the urn. If a red ball is chosen, it is removed. Any green ball that is chosen is returned to the urn. The...

An urn contains2 red and8 green balls. The balls are chosen at random, one by one, from the urn.

If a red ball is chosen, it is removed.

Any green ball that is chosen is returned to the urn. The selection process continues until all of the red balls have been removed from the urn. What