Name _______________________________________________
PreAlgebra Period _____________________________________
1.
Date _____________________
Activity 6.4
Count the number of each color of Smartie in your pack and record it in the table below.
Pink
Orange
Yellow
Green
Purple
White
Total Candies
15
2. Ratios and Percents Review
a.
Write the ratio of purple Smarties to total Smarties
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b.
Write the ratio of pink Smarties to orange Smarties
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c.
Write the ratio of not green Smarties to total Smarties
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d.
What percent of your Smarties are yellow?
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3. Calculating Probability – Just use observations of your pack to help you answer this section. Do not actually pick.
a.
Find P(picking a purple Smartie from your pack)
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b.
Find P(picking a pink Smartie from your pack)
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c.
Find P(picking not green from your pack)
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Which of your answers to parts of question #3 are the same as your answers to parts of question #2? Why is this the
case?
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4. Calculating Odds - Just use observations of your pack to help you answer this section. Do not actually pick.
a.
Find the odds in favor of picking a purple Smartie
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b.
Find the odds in favor of picking a pink Smartie
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c.
Find the odds against picking a green Smartie
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Which of your answers to parts of question #4 are the same as your answers to parts of question #2? Why is this the
case?
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5.
Put your Smarties in a paper bag and trade bags with your partner. Do not look in the bag as you complete the
next task. One at a time, remove a Smartie from the bag, record its color in the table below, and then replace
the Smartie. Repeat this process until you have picked and recorded colors 60 times.
Pink
6.
Orange
Yellow
Green
Purple
White
Total Picks
60
Based on your results from #5, make a prediction about the number of each color candy that your partner
originally had in his/her bag. Use probability calculations to support your predictions.
Prediction of Each Color:
Pink
7.
Orange
Yellow
Green
Purple
White
Total Candies
15
Some parts of questions 1-6 are based on theoretical probability and other parts are based on experimental
probability. Explain which parts you think are which and why. (Some parts may not apply.)
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