1. By: Lueverne Montez

2. Definition Mean Mean – the average of a group of numbers. 2, 5, 2, 1, 5 Mean=3

3. Mean is found by evening out the numbers 2, 5, 2, 1, 5

4. Mean is found by evening out the numbers 2, 5, 2, 1, 5

5. Mean is found by evening out the numbers 2, 5, 2, 1, 5 Mean=3

6. How to Find the Mean of a Group of Numbers Step 1 – Add all the numbers. 8, 12, 15, 20, 25, 28 8+12+15+20+25+28 = 108

7. How to Find the Mean of a Group of Numbers Step 2 – Divide the sum by the number of addends. 8, 12, 15, 20, 25, 28 8+12+15+20+25+28 = 108 How many addends are there? 6

8. How to Find the Mean of a Group of Numbers Step 2 – Divide the sum by the number of addends. 6) 108 1 sum # of addends 6 84 4 8 0 8

9. How to find the mean of a group of numbers The mean or average of these numbers is 17.5 7, 12, 14, 16, 26, 30

10. What is the Mean of these numbers? 8, 12, 22 14

11. What is the Mean of these numbers? 1, 5, 11, 15 8

12. What is the Mean of these numbers? 2, 8, 12, 18, 10

13. What is the Mean of these numbers? 26, 34, 42, 52 38.5 or 39

14. Review The mean is the average of a set of numbers. In order to find the mean you must: Have a data set Add all the addends together to find the total Divide the total by the amount of addends in your data set Your quotient should be your “mean” It could be a whole number or in decimal format