Today we will know what the mean of a set of numbers are and how to compute the mean of those numbers. set=group of numbers compute=work out

Copyright © 2000 by Monica Yuskaitis Vocabulary Review Sum – the answer to an addition problem. Addend – the numbers you added together to get the sum = 15

Copyright © 2000 by Monica Yuskaitis Definition Mean Means Average

Copyright © 2000 by Monica Yuskaitis Definition MeanMean – the average of a group of numbers. 2, 5, 2, 1, 5 Mean = 3

Copyright © 2000 by Monica Yuskaitis Mean is found by evening out the numbers 2, 5, 2, 1, 5

Copyright © 2000 by Monica Yuskaitis Mean is found by evening out the numbers 2, 5, 2, 1, 5

Copyright © 2000 by Monica Yuskaitis Mean is found by evening out the numbers 2, 5, 2, 1, 5 mean = 3

Copyright © 2000 by Monica Yuskaitis How to Find the Mean of a Group of Numbers Step 1 – Add all the numbers. 8, 10, 12, 18, 22, = 96

Copyright © 2000 by Monica Yuskaitis How to Find the Mean of a Group of Numbers Step 2 – Divide the sum by the number of addends. 8, 10, 12, 18, 22, = 96 How many addends are there?

Copyright © 2000 by Monica Yuskaitis How to Find the Mean of a Group of Numbers Step 2 – Divide the sum by the number of addends. 6)6) 96 sum# of addends

Copyright © 2000 by Monica Yuskaitis How to Find the Mean of a Group of Numbers The mean or average of these numbers is 16. 8, 10, 12, 18, 22, 26

Copyright © 2000 by Monica Yuskaitis What is the mean of these numbers? 7, 10, 16 11

Copyright © 2000 by Monica Yuskaitis What is the mean of these numbers? 2, 9, 14, 27 13

Copyright © 2000 by Monica Yuskaitis What is the mean of these numbers? 1, 2, 7, 11, 19 8

Copyright © 2000 by Monica Yuskaitis What is the mean of these numbers? 26, 33, 41, 52 38