What is the mean of 12, 18, 24?

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Multiple Choice

What is the mean of 12, 18, 24?

Explanation:
Mean is the average: add all the numbers and divide by how many numbers there are. So, 12 + 18 + 24 = 54, and there are three numbers. 54 ÷ 3 = 18. The mean is 18. If you think about the other options, a mean of 16 would correspond to a total of 48, a mean of 20 to a total of 60, and a mean of 22 to a total of 66. Since the actual total is 54, the average comes out to 18.

Mean is the average: add all the numbers and divide by how many numbers there are. So, 12 + 18 + 24 = 54, and there are three numbers. 54 ÷ 3 = 18. The mean is 18. If you think about the other options, a mean of 16 would correspond to a total of 48, a mean of 20 to a total of 60, and a mean of 22 to a total of 66. Since the actual total is 54, the average comes out to 18.

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