A bag has 10 colored chips in it. The colors are red, blue, green, and yellow. By drawing a chip out of the bag and replacing them back into the bag, the number of yellow chips in the bag can be discovered. Use this machine to simulate a bag of chips. Press the button to draw a chip. You will need to make 20 to 50 trials to get the correct probability for the yellow chips.

Note: if you click the button and the color does not change then that color was drawn again.

Use a separate sheet of paper to record the color of chip for each trial.
After you have made 20 to 50 trials, count up the total of each different color chip. Place that number over the total trials taken. Reduce to simplest form. Submit the number of yellow chips that are inside the bag.



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