2. | Without looking in the bag pick a cube and record the color on your chart. Return the cube to the bag. |
3. | Continue this process until you can the determine the ratio of red:blue:black. |
4. | Estimate the number of cubes of each colour. |
5. | Suppose there are 60 cubes in the bag, how many of each colour will there be? |
6. | Suppose you double or triple the total number of cubes in the bag. How will this affect the ratio of each colour? |
7. | Open the bag to count the cubes. Compare these findings with your above answers. |