Mathematics: Applications & Concepts, Course 2
Mathematics: Applications & Concepts, Course 2 Glencoe Online
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Group Activity Cards

and Probability

Use groups of 4.
Materials: Index cards, paper bag
Bag It

Write the numbers 1-20 on cards, one number per card, and put the cards in a paper bag. Make a frequency table like the one shown below.

In turn, each group member selects a card, records the outcome in the table, and returns the card to the bag. After the experiment has been performed twenty times, write the number of times a number greater than 12 was selected as the numerator of a fraction with a denominator of 20. Express this fraction as a decimal. Then use the following formula to find the theoretical probability of drawing a number greater than 12:

Probability equation

Did your experimental results come close to the theoretical probability you computed?



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Mathematics: Applications & Concepts, Course 2