Name: ______________________
You are going to do some “testing” of probability today.
until the worksheet says you can.
DO NOT EAT any Skittles
If you do, your data will be wrong.
you read the instructions!
Part 1: Theoretical Probability
Step 1: Open your bag of Skittles and pour your Skittles onto your paper towel.
Step 2: Count each color of Skittles
Step 3: Record the data in the table below.
Color
Number
Red
Orange
Yellow
Green
Purple
Total
Step 4: Determine the theoretical probability of the following:
1.) P(red) = _________________
2.) P(orange) = _________________
3.) P(yellow) = _________________
4.) P(green) = _________________
5.) P(purple) = _________________
Be sure
Part 2: Experimental Probability
Color
Step 1: Pour your Skittles into a cup
Red
Step 2: Choose 1 Skittle out of the cup
Orange
Step 3: Record the color in the table below
Yellow
Step 4: Replace the Skittle
Green
Step 5: Shake the cup
Number
Purple
Step 6: Repeat steps 2-5 20 times.
Total
Step 7: Determine the probability of the following:
6.)
P(red) = _________________
7.)
P(orange) = _________________
8.)
P(yellow) = _________________
9.)
P(green) = _________________
10.) P(purple) = _________________
Part 3: Compound Probability
Using the theoretical probability from Part 1 to answer questions 11-12:
11.) P(red│ red) = ____________________
12.) P(green│ yellow│ orange) = _________________
Using the experimental probability from Part 2 to answer questions 13-14 with replacement:
13.) P(red│ red) = ____________________
14.) P(green│ yellow│ orange) = _________________
Using the experimental data from Part 2 to answer questions 15-17 without replacement:
15.) P(red│ green) = _______________________
16.) P(orange│ purple) = _______________________
17.) P(red│ green│ orange│ yellow) = _________________________
NOW YOU MAY EAT YOUR SKITTLES!!!!!!!!!!!!!!!!!