Name________________________

 

MEAN/MEDIAN/MODE/RANGE #6--KEY

 

 

Directions: Calculate the mean, median, mode, and range for each set of numbers below. Round all answers to the nearest tenth. To put the numbers in the correct order, you will have to add some zeroes as decimal place holders

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. To find the median, list the numbers from least to greatest and select the middle value. The mode is the number that appears most often in the set. There could be more than one mode, or there could be no mode. To find the range, take the largest value in the set minus the smallest value.

 

Example: Here are the numbers in the set (3.25, 3.1, 3.3, 4, 3.75)

 

Mean = (3.25 + 3.1 + 3.3 + 4 + 3.75) / 5 = 17.4/5 = 3.48 or 3.5 Mode = No mode

 

Median = (3.10, 3.25, 3.30, 3.75, 4.00) = 3.30 or 3.3 Range = 4 3.1 = 0.9

 

MEAN MEDIAN MODE RANGE

 

1) (5.2, 6.25, 4.75, 4.7, 8) _5.8 (5.78)_ __5.2___ _none_ __3.3___

 

 

2) (3.5, 3.1, 3.1, 3.3, 3.6, 3.1, 3.4, 3.2) 3.3 (3.2875) _3.25___ __3.1__ __0.5___

 

 

3) (0.1, 0.124, 0.11, 1.0) 0.3 (0.3335) __0.117_ __none__ __0.9___

 

 

4) (9, 8.75, 8, 9, 8.7) __8.69_ _8.75____ ___9___ __1_____

 

 

5) (0.5, 0.05, 0.005. 5, 0.05) 1.1 (1.121) _0.050___ _none_ 5 (4.995)_

 

 

6) (21, 22, 12, 24, 20, 10, 9, 20.6) 17.3(17.325) _20.3____ _none_ __15___

 

 

7) (0.2, 1, 2, 4, 4, 0.02) 1.9 (1.87) __1.5_____ ___4___ _4 (3.98)_

 

 

8) (100, 99, 95, 100, 95, 99.5) 98.1 (98.083) __99.25___ ___95__ ___5____

 

 

9) (6.5, 5.6, 6.5, 5, 6, 0.65) 5.0 (5.042) __5.8_____ _6.5_ 5.9 _(5.85)

 

 

10) (5.4, 4.5, 4.4, 5.5, 4.5, 5.4, 4.4, 4.4) 4.8(4.8125) __4.5_____ __4.4__ _1.1__