How Do You Find the Mean?
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To find the mean, or average, of a group of numbers, add together each of the numbers in the group. Then, divide this total by the number of numbers in the group.
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Calculate the total
Add together each number in the group to obtain the total, or sum, of the numbers. If numbers are duplicated, include each occurrence in the sum.
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Count the numbers
Count how many numbers are in the group. If the same number occurs more than once, it should be counted more than once.
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Calculate the mean
Calculate the mean by dividing the sum of the numbers in the group by the count of the numbers in the group.
