Question

HELP!!!!!!!!!!
Adam has a bag of 36 marbles. He pulls a marble out of the bag and records its color. He puts the marble back in the bag before the next trial. The results of 12 trials are shown in the table at the right. Based on these results, predict how many marbles of each color are in the bag. Explain your answer.

Answer 1

It's a question of probability.

Say you choose 12 marbles, and 6 of them are blue, 3 are green, and 3 are red. The most likely explanation for choosing this particular combination is that you had a greater chance (in fact, twice as great) of choosing blue marbles over either green or red marbles, and that you had similar chances of choosing a green or a red marble.

What this means is that there are probably about twice as many blue marbles as there are green or red marbles, and a similar number of green and red marbles.

You didn't post the table so I just made up numbers as an example, but it'll be the same idea for you. Whatever proportion of each colour marble makes up what was chosen from the 12 is probably going to be similar to the 36, so just multiply each number by 3.

Answer 2

Hey man you need to be patient! If you're coming here for help, you need to give the person who's trying to help you time to write their answer. You got an answer in less than 5 minutes, and it took me less than 2 minutes to type it out. I'd say that's pretty good for asking a random internet stranger :P

Answer 3

This is the chart

Answer 4

I multiplied and got 12 for blue, 18 for red and 6 for yellow

Answer 5

Looks good

Answer 6

So what's the answer?

Answer 7

You just predicted how many of each marble is in the bag, so that's half the answer right there. As for the explanation of why that is...see my answer above!

Answer 8

K