Question

You're a 7th grade math teacher and you want to create an experiment for your class with red, yellow and purple marbles in the bag. You want the theoretical probability of getting red to be 1/2. The theoretical probability of drawing yellow be 1/3 and the theoretical probability of drawing purple being 1/6. If you want a total of 1260 marbles in the bag.
1. How many red marbles are you going to put in to the bag and why?
2.How many marblesare yout going to put into the bag and why?
3. How many purple marbles are you going to put into the bag and why?

Answer 1

630 red marbles

420 yellow marbles

210 purple marbles

because 1260 x 1/2 = 630, 1260 x 1/3 = 420, 1260 x 1/6 = 210