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8 February, 11:14

The lengths of a sample of tiger canines were measured. 68% of the lengths fell within a range between 15 mm and 45 mm. The mean was 30 mm. What is the standard deviation of this sample?

A. 5 mm

B. 15 mm

C. 7.5 mm

D. 30 mm

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Answers (1)
  1. 8 February, 11:35
    0
    B. 15 mm is the standard deviation
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