# mean median mode range

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```					To Calculate the Statistical Mean
1.   Add the data together carefully
2.   Count the number of data items
3.   Divide the sum found in step 1 by the number of data in step 2
4.   Write the number rounded to the required place-value

To Find the Statistical Mode
1. Find the data item that appears most often or is the most frequent
2. If there is a tie, then list all of those data as the mode
3. If every data item appears the same number of times, there is NO MODE

To Find the Statistical Median
1.   List the data in increasing order
2.   Count the number of data items
3.   Divide by two to find the middle piece of data
4.   If the answer to step 3 is even, find the average of that piece of data and the next one
5.   If the answer to step 3 is a decimal, round up to the nearest whole, and count to that place of
data

To Find the Range of Data
1. Find the lowest number in the data set
2. Find the highest number in the data set
3. Find the difference between the highest and lowest numbers using subtraction

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 views: 0 posted: 2/13/2012 language: pages: 1
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