What is the average of the numbers 5, 11, 19, and 25?

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Multiple Choice

What is the average of the numbers 5, 11, 19, and 25?

Explanation:
The average (arithmetic mean) is found by adding all the numbers and dividing by how many numbers there are. Here, 5 + 11 + 19 + 25 totals 60. There are 4 numbers, so the average is 60 ÷ 4 = 15. You can see this another way by pairing the numbers: 5 with 25 sums to 30, and 11 with 19 also sums to 30; the average of all four is the same as the average of these sums, which is 30 ÷ 2 = 15.

The average (arithmetic mean) is found by adding all the numbers and dividing by how many numbers there are. Here, 5 + 11 + 19 + 25 totals 60. There are 4 numbers, so the average is 60 ÷ 4 = 15. You can see this another way by pairing the numbers: 5 with 25 sums to 30, and 11 with 19 also sums to 30; the average of all four is the same as the average of these sums, which is 30 ÷ 2 = 15.

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