This looks like you are asking what does "cube root" mean. The cube root of one number is a second number which, when multiplied by itself three times, will bring you back to the first number. The cube root of 27 is 3. This is because 3 x 3 = 9, and 9 x 3 = 27. Similarly, the cube root of 1331 is 11 - as 11 x 11 =121 and 121 x 11 = 1331.
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What does mean mean
The arithmetic mean is a weighted mean where each observation is given the same weight.
the mean is an average of a set of numbers
1.The Geometric mean is less then the arithmetic mean. GEOMETRIC MEAN < ARITHMETIC MEAN 2.
The mean of the sampling distribution is the population mean.