Question: A golf ball is selected at random from a golf bag. If the golf bag contains 4 green balls,7 black balls, and 5 red balls,

A golf ball is selected at random from a golf bag. If the golf bag contains 4 green balls,7

black balls, and 5 red balls, find the probability of the following event.

The golf ball is green or black.

The probability that the golf ball is green or black is??

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