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The lengths (in minutes) of a sample of cell phone calls are shown: 6 19 3 . 6 12 8 Find the standard deviation. A.

The lengths (in minutes) of a sample of cell phone calls are shown: 6 19 3 . 6 12 8 Find the standard deviation. A. 5.7 B. 5.2 C. 32.8 D. 16

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