This is an MCQ-based quiz for GRE on **How To Find Arithmetic Mean.**

The Sum of all of the numbers of a group, when divided by the number of items in that list is known as the Arithmetic Mean or Mean of the group.

Find the arithmetic mean of the following series of numbers: 1, 2, 2, 3, 4, 5, 11, 12

The mean of the sample of numbers 2, 5, and 10.

Column B

The mean of the sample of numbers 1, 5, and 15.

The quantity in Column B is greater.

The relationship cannot be determined from the information given.

The two quantities are equal.

The quantity in Column A is greater.