What is the arithmetic average of 12%, 14%, -20% (that’s negative 20) and 10%? What is the geometric average?
How to find
number N of data points in your data set.
Sum up the
total of your data set; add them all together.
Mean = Sum/N
Average: 0 / 4 = 0
Step 1: Use formula Geometric Mean = (a1 × a2 . . .
an) 1N where, N = number of entries.
Now plug in
the value in respective place
Step 2: Now multiply the numbers together and then
calculate the nth root, gives the Geometric Mean value.
So the geometric
average of 12%, 14%, -20%, 10% = NaN
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