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The arithmetic mean, also known by many as the average, is a number often used in normal day-to-day life. Teachers use it to calculate grades, workers employ it to determine the average amount that they bring home each month, and meteorologists can utilize it to measure the average daily temperature for a month. In simple terms, the mean is simply the total amount of a set of numbers divided by the number of values used. Calculating the mean is not difficult, even when dealing with a large number of values.

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1. Basic Mean Calculation

The basic calculation of the mean involves collecting a series of numbers, whether it is a collection of test scores or the time it takes to travel from one side of town to the other on different days of the week. Once the numbers are added together, they are multiplied by the number of values provided. For travel times during the work week, people should find five separate values, meaning that five becomes the number that the total is divided by. In mathematical terms, the mean = (a+b+c...)/(total number of entries).

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