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The quality control inspector of a factory manufacturing screws found that the samples of screws are normally distributed with a mean length of 5.5 cm

The quality control inspector of a factory manufacturing screws found that the samples of screws are normally distributed with a mean length of 5.5 cm and a standard deviation of 0.1 cm.

If the distribution is normal, what percent of data lies between 5.3 centimeters and 5.7 centimeters?

99.7%

95%

34%

68%

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