1. Lesson 7.2 Generating Random Numbers

2. Definitions In your math notebook, define the following: Outcome Generate random numbers - each pick from an activity. Example from the card-picking activity the random numbers are 1-5. Random number

3. Learning Target I can investigate random numbers: and to use number cards to generate random numbers with in a given range.

4. Math Message Complete problem 1 on page 250 in your math journal.

5. Math Message Follow-up Each number generated is an OUTCOME. We had 5 possible Outcomes for this scenario…1,2,3,4,5 Therefore each pick Generates Random Numbers 1-5 A number produced by a random scenario is a Random Number Therefore a number that has the same chance of appearing as any other number, cannot be predicted, and there is no pattern is a Random Number So… each of the 5 numbers has about 1 out of 5, of being picked

6. More Math Message Follow-up We know the ratio is 1 out of 5 or 1 5 Now to figure out the percent use this formula number of favorable outcomes = unknown percent number of possible outcomes total percent (100) 1 = n 5 100 Cross multiply 1 X 100 and 5 X n 100 = 5n (look familiar? This is an equation.) Divide both sides by 5 n = 20 or 20%

7. With your partner… Continue to work on page 250 and 251

8. Homework Math Boxes 7.2 Study Link 7.2

9. Definitions Outcome: any number generated in an activity. Example: There are five possible outcomes for this card-picking activity-the numbers 1,2,3,4,5. Generate random numbers: each pick from an activity. Example from the card-picking activity the random numbers are 1-5. Random number: a number produced by a random experiment, such as rolling a fair or spinning a spinner. For example, rolling a fair die produces random numbers because each of the six possible numbers 1,2,3,4,5,6, has the same change of coming up.