RANGE DEFINITION:

The difference between the highest and the lowest numbers in a set of numbers.

HOW TO FIND THE RANGE:

Subtract the lowest number from the biggest and you get the range!

FIND THE RANGE

ex. 3,6,3,7,9

9-3=6 6 IS THE RANGE

MEAN DEFINITION:

average of all the numbers

HOW TO FIND THE MEAN

found by dividing the sum of the numbers by the amount of numbers added.

FIND THE MEAN

ex. 3,6,3,7,9

3+6+3+7+9=28

28 divided by 5=5.6 5.6 is your mean

MEDIAN DEFINITION:

The number directly in the middle

HOW TO FIND THE MEDIAN:

List all numbers in order from least to greatest.

You count over to the middle. If there are two numbers in the middle, add them and divide by two.

FIND THE MEDIAN

EX. 3,6,3,7,9

3,3,6,7,9 The middle number is 6. 6 is your median.

MODE DEFINITION:

The mode is the number that you see more than any other number.

The number or numbers that occur most often in a set of numbers.

EX. 3,6,3,7,9

the number that occurs the most is 3. 3 is your mode.

DEFINITION OF OUTLIER:

In statistics, an outlieR is an observation that is numerically distant from the rest of the data. Basically the number that seems to be way off from the other numbers.

EX: 3,6,5,85

The outlier would be 85

## Tuesday, February 9, 2010

### Mean Median and Mode Range and Outliers

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