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Math Refresher: Analyzing Data

Math Refresher

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Introduction

Many math problems will ask you to analyze a table, graph, chart, etc.  Some important terms to know: 

Mean: The average of two or more values. To find the mean, add the values together and divide the total by the number of added values.  

Median: The middle value in a group of numbers. To find the median, arrange the values from largest to smallest and find the middle value. If there is an even amount of values, the median is the average of the two middle values.

Mode: The value that appears most frequently. To find the mode, determine what value appears the greatest number of times. Sometimes there is no mode. 

Range: The distance of the largest value from the smallest value. To find the range, subtract the smallest value from the largest value. 

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