The mean is the sum of a list of numbers divided by the number of numbers on the list. for example: the mean of 1,2,3,4,5 is (1+2+3+4+5)/5 = 3
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joined sets in math
By simply dividing and multipying orbs
The reciprocal is the "multiplicative inverse". This means 1 divided by the number. The reciprocal of 2 is 1/2, the reciprocal of 5 is 1/5, etc.
the median is the middle number in a set of data.
it is part of algebra math