A package of self-sticking notepads contains 6 yellow, 6 blue, 6 green, and 6 pink notepads. An experiment consists of randomly selecting one of the notepads and recording its color. Find the probability that a yellow or pink notepad is selected given that it is either blue or green.

50%

Step-by-step explanation:

To find the probability, we must know the total quantity and the specific quantities in each case, then:

We know that in total there are 6 of each and there are 4, therefore, in total they would be:

6 * 4 = 24

24 packs of notebooks.

Now, in each case there are 2 of each color, that is to say that both cases would have 12, since each package has 6.

Therefore, the probability for both cases would be:

12/24 = 0.5

I mean, it would be 50%