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In a study of the function of pectoral fins in fish, a graduate student examined 7 fish with the following lengths (in centimeters, cm). 30

In a study of the function of pectoral fins in fish, a graduate student examined 7 fish with the following lengths (in centimeters, cm). 30 28 29 27 31 25 29 What is the variance of these seven fish lengths? Answer 1. 1.41 cm 2. 1.99 cm2 3. 3.39 cm2 4. 3.95 cm2

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