Name________________________
CALCULATING THE
MEAN #2--KEY
Directions: Calculate the mean for each set of numbers below. To find the mean of a set of numbers, add all of the data together, then divide that sum by the amount of numbers in the set.
Example: Here are the numbers in the set (2, 2, 8, 10, 9)
Add them together 2 + 2 + 8 + 10 + 9 = a total of 31
Divide by the amount of numbers in the set 31 divided by 5 gives you a mean of 6.2
SUM DIVIDED
BY MEAN
1) (4, 4, 6, 8,) __22___ _4_ ___5.5_
2) (2, 4, 4, 6, 1, 4) __21___ _6_ ___3.5_
3) (12, 14, 10,) __36___ _3_ __12___
4) (9, 2, 5, 7, 5) __28___ _5_ ___5.6_
5) (1, 2, 4, 6, 1, 6, 8) __28___ _7_ ___4___
6) (12, 4, 16, 10,) __42___ _4_ __10.5_
7) (10, 4, 6, 10, 4) __34___ _5_ ___6.8_
8) (22, 9, 8, 11,) __50___ _4_ __12.5_
9) (16, 8, 15, 11, 7) __57___ _5_ __11.4_
10) (1, 2, 3, 5, 1, 4, 6, 1, 2, 2) __27___ _10__ ___2.7_
EXTENSION: List all of the means from #1-10 in order from least to greatest.
2.7, 3.5, 4, 5.5, 5.6, 6.8, 10.5, 11.4, 12,
12.5