An outlier can make the range go up.
Example:
say you have the numbers. 2,5,4,1,7,and 18.
in order from least to greatest: 1,2,4,5,7,18
range is the greatest number - the littlest number.
so in this case it is 18-1 which equals 17
say if there was no outlier and the highest number was 7
it would be 7-1 which is 6 and it makes the outlier smaller....
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Yes there can be more then one outlier
Outlier
it is called an outlier
It doenst affect the mode, as the mode is just all the numbers in order, lowest to highest.. E.g. 1,2,3,4,5,6,7,8,9,10. Hope this helps... :)
There would be a difference to the median. The old number wouldn't be the median but the mode wouldn't change. If the outlier is a high value, it will cause the mean value to shift to the higher side, while a low valued outlier will drop the mean value to a lower number.