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The mean height of a sample of 15-year-old boys is 175 centimeters, with a standard deviation...

The mean height of a sample of 15-year-old boys is 175 centimeters, with a standard deviation of 10. For a sample of 15-year-old girls, the mean is 165 centimeters with a standard deviation of 8.

If 8 boys and 8 girls were sampled, the standard deviation of the difference is ___. (Round your answer to the nearest hundredth.)

Math   Statistics-And-Probability   
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