# Question: A useful mean in the physical sciences such as voltage

A useful mean in the physical sciences (such as voltage) is the quadratic mean (QM), which is found by taking the square root of the average of the squares of each value. The formula is

The quadratic mean of 3, 5, 6, and 10 is

Find the quadratic mean of 8, 6, 3, 5, and 4.

The quadratic mean of 3, 5, 6, and 10 is

Find the quadratic mean of 8, 6, 3, 5, and 4.

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