kelsey's measures of central tendency

Monday, September 29, 2008
Mean :

Taking a group of numbers adding them all together, then divide them by how many numbers are in the set.

Median :

First arrange them in ascending order .
It is the middle number in a data set.
if there are two number in the middle add them up, then divide by two.

Mode :
Is an average represented by a number that is used the most often.
Range :
when you subtract the smallest number in the data set by the biggest number in the data set.

Here is my movie on mmm


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