Median-The result of arrangng the values in ascending order and finding the value in the middle. If 2 values remain, add the 2 values and divide by 2.
1,5,9,13,17 Median = 9
http://math.about.com/library/weekly/aa020502a.htm
Mean-The result of adding the values up and dividing by the number of values
1+5+9+11+17= 45/5 = 9
Mode- The number that occurs the most
1,1,1,1,1,1,1,1,1,1,1,1,1,5 mode=1
Range- the difference between the greatest and lowest values
1,5,9,11,17 17-1=16 Range=16
Here is a video about mmm
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