Group Activity Cards

Statistics 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:

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