Question

5. If I added two colors and took out one blue, what colors and how many did I add to get all the colors to

have an equal chance of being selected?
The teacher posted the answer to number 25 but didnt show us how he got it, just curious to see how he got it if i could see the equation maybe i could figure it out

Answer 1

So basically, there are 3 red, 5 blue, 4 green and 3 purple.

When you take out a blue, you have 4 blue left.

And so, by adding a red and purple, you have 4 of each color, which make it fair

Hope it helps you understand :D