Mathematics, 22.03.2021 17:00 browneyedbaby20

In a hearing test, subjects estimate the loudness (in decibels) of a sound, and the results are (mean = 70): 68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68. What is the variance?

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In a hearing test, subjects estimate the loudness (in decibels) of a sound, and the results are (mea...