You divide by the number of numbers - if you want the mean of three numbers you divide by 3, if you want the mean of a hundred numbers you divide by 100.
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Add them all together, then divide by the number of the amount of numbers. Say you wanted the mean of 2, 3, and 4. You would add 2, 3, and 4 then divide by 3, because there are 3 numbers.
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eight and twelveas mean is 10 then startwith 10 then divide the range of 4 by 2 = 2and take 2 off and add 2 on10 - 2 = 8 and 10 + 2 = 12Check:8 + 12 = 20 then divide those 2 numbers by that 2 so 20 / 2 = 10 mean12 - 8 = 4 range
Oh, dude, you've got a bunch of numbers there! So, the mean of a set of numbers is just the average, you know, like when you add them all up and then divide by how many numbers there are. So, for 2, 6, 9, 4, and 4, you'd add them up and divide by 5 to get the mean. Math, man, it's wild!