## AngelDreamGurl 3 years ago You draw a marble from a bag of 120 marbles, you chart the color a replace it. estimate the number of marble in the bag that are: -yellow -red -green by using this information How many time been drawn Y-3 R-7 G-5

1. SmoothMath

Well stated =D

2. AngelDreamGurl

=)

3. SmoothMath

What I'd do is I'd think about how many times I've drawn a marble TOTAL. Then I'd think about how many times I've drawn a specific color. Then I'd guess that the color was that fraction of the whole bag.

4. SmoothMath

For example, imagine I have 20 marbles total in a bag. I draw 4 and I get a red marble once. I can guess that red is 1/4th of the bag, meaning there are 5 red marbles.

5. AngelDreamGurl

ok so how would i do it with 120 marbles

6. SmoothMath

You drew: y-3 r-7 g-5 let's think about trying to guess how many greens are in the bag. Of the marbles that I drew, what fraction were green?

7. AngelDreamGurl

5/15 right?

8. AngelDreamGurl

@SmoothMath

9. SmoothMath

Right. Which is the same as 1/3. So if you pulled 1/3 greens, just assume that 1/3 of the 120 marble bag is greens. How many is that?

10. AngelDreamGurl

um...

11. AngelDreamGurl

\[\approx\]33%

12. AngelDreamGurl

soooo 40

13. SmoothMath

Yes =D

14. SmoothMath

Try the other 2 colors on your own and tell me what you get.

15. AngelDreamGurl

yayyyy

16. AngelDreamGurl

hmmm for y i get 24 but for red its 7/15 so now what @SmoothMath

17. AngelDreamGurl

..

18. AngelDreamGurl

@SmoothMath

19. SmoothMath

120* (7/15)