Page 67 - Algebra 1

1L A B
Generating Random Numbers
Graphing Calculator Lab (Use with Investigation 1)
A set of random integers has no pattern. Some common methods for generating random integers include rolling a number cube or drawing numbers out of a hat. A graphing calculator can also be used to generate random integers.
Generate three random integers between 1 and 12.
1. Press and then press the key three times to highlight PRB.
2. Select 5:randInt( by pressing 5.
3. Identify the range of values.
The lowest possible value is 1 and the highest is 12. So, press 1 [,] 12 [)].
4. Press to generate one integer between 1 and 12. An integer between 1
and 12 is 6.
5. Press two more times to generate two more integers between 1 and 12. Three integers
between 1 and 12 are 6, 12, and 9.
Lab Practice
Jared lost the number cubes to his favorite board game, but he does have his graphing calculator. According to the rules, the player should throw two number cubes and move the total number of spaces shown on the top faces of the cubes.
a. What range of numbers does a single number cube generate? What would Jared enter into the calculator to simulate a number cube?
b. How would Jared simulate rolling two number cubes? How would Jared know how many spaces to move?
c. Simulate Jared taking three turns. What number of spaces will he move in each turn? What is the total number of spaces moved?
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52 Saxon Algebra 1