A bag contains 6 yellow marbles and 18 red. If a representative sample contains 2 yellow marbles, then how many red would you expect it to have? Explain.

6 red marbles

Step-by-step explanation:

We must first find our multiplier since a sample represents a population (the whole thing).

6/2 = 3, so 3 * 2 = 6.

I will use the value of 6/2, aka 3 and use that as my divisor.

18/3 = 6.

Therefore, you would expect to have 6 red marbles.