Understanding the Concept of Mean in Mathematics


A Comprehensive Guide to Mean in Math

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<h3>Understanding the Concept of Mean in Mathematics</h3> <br /><h4>A Comprehensive Guide to Mean in Math</h4>

In math, the mean is the average of a set of numbers. To find the mean of a data set, add up all of the numbers in the set, and then divide that total by the number of numbers in the set.

A Measure of Central Tendency

In statistics, the mean is one of the three measures of central tendency, which are single numbers that try to pinpoint the central location within a data set. The mean, or average, is used most commonly, but it is important to differentiate it from the two other measures: median and mode. The median is the middle number when the numbers are listed in ascending order, while the mode is the most frequently occurring number.



Worked Example

Suppose you are asked to find the mean of the daily high temperatures for the last four days, which were recorded as 72, 72, 84 and 68 degrees Fahrenheit. Add 72 + 72 + 84 + 68, which equals 296. Divide 296 by 4, producing a result of 74. Thus, the mean of the data set describing the temperatures over the past four days is 74 degrees Fahrenheit.

Dave Pennells

By Dave Pennells

Dave Pennells, MS, has contributed his expertise as a career consultant and training specialist across various fields for over 15 years. At City University of Seattle, he offers personal career counseling and conducts workshops focused on practical job search techniques, resume creation, and interview skills. With a Master of Science in Counseling, Pennells specializes in career consulting, conducting career assessments, guiding career transitions, and providing outplacement services. Her professional experience spans multiple sectors, including banking, retail, airlines, non-profit organizations, and the aerospace industry. Additionally, since 2001, he has been actively involved with the Career Development Association of Australia.