Name________________________

MEAN/MEDIAN/MODE/RANGE #4--KEY

Directions: Calculate the mean, median, mode, and range for each set of numbers below.  Round all answers to the nearest tenth.  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 (2, 2, 4, 14, 6, 8)

Mean = (2 + 2 + 4 + 14 + 6 + 8) / 5 = 36/6  = 6                                 Median = (2,2,4,6,8,14) = (4+6)/2 = 5

Mode = 2                                                                                Range = 14 – 2 = 12

MEAN               MEDIAN               MODE               RANGE

1)         (11, 2, 9, 6, 8, 4)                                 __4___                  __7___                  _none_                __9___

2)         (4, 2, 1, 4, 6, 1, 4, 3)                            3.1(3.125)              _3.5__                   ___4__                __5___

3)         (22, 8, 10, 15, 12, 9, 6, 10, 12, 10)      __11.4_                  _10___                 __10__                __16__

4)         (16, 2, 15, 7, 5, 8,)                               8.8(8.83)                 _7.5___                _none_                __14__

5)         (3, 1, 2, 4, 6, 1)                                    2.8(2.83)                 _2.5___                __1___                __5___

6)         (21, 22, 12, 24, 16, 10, 9, 20)              16.8(16.75)             _18___                 _none                  __15__

7)         (2, 10, 5, 6, 10, 4, 4, 2, 8, 6, 4, 2)        5.3 (5.25)                __4.5__                _2,4__                 __8___

8)         (99, 88, 100, 95)                                  __95.5__                __97__                 _none                  __12__

9)         (6, 5, 5, 5, 5, 6, 5, 6)                            5.4(5.375)               __5___                 __5___                __1___

10)       (54, 45, 44, 55, 45, 54, 44, 44, 55, 54)__49.4_                  __49__                 _44,54                 __11__