Define the arithmetic mean (AM) of positive numbers x1, …, xn.

Define the arithmetic mean (AM) of positive numbers x1, …, xn.

A AM = (x1 + … + xn)/(n − 1)

B AM = (x1 + … + xn)/n

C AM = n/(x1 + … + xn)

D AM = sqrt((x1^2 + … + xn^2)/n)

Solution

Correct Answer: Option B