To find mean: add all the numbers and divide by the amount of numbers.
To find medium: put the numbers in order and find the middle value. If there are two, add them and divide by two.
To find mode: find the number that appears most often.
To find range: subtract the lowest number from the highest number.
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Mean: 71 Median: 67.5 Mode: None Range: 28
Mean = 7.9 Median = 7 and 8 Mode = 4 and 12 Range = 2 to 15.
Mean: 4.2 Median: 2 Mode: 1 Range: 8
Prior to the introduction of 170, the mean, median, mode and range did not exist since there were no numbers at all. Once 170 is introduced, it becomes the mean, median and mode. The range is zero.
The mean and the median of the two numbers, 12107 and 1115 are 6611.There is no mode. The range is 10992.