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OpenStudy (anonymous):
Suppose that 100 measurements of the specific gravity of copper gave a mean of 8.8 with a standard deviation of 0.2. Between what limits did about 95% of the measurements fall?
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OpenStudy (anonymous):
95% is two standard deviations, or 0.4, so measurements fall between 8.8 - 0.4 and 8.8 + 0.4
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