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16 September, 01:11

The length of a screw produced by a machine is normally distributed with a mean of 0.25 inches and a standard deviation of 0.01 inches. What percent of screws are between 0.24 and 0.26 inches?

68%

95%

99.7%

100%

+3
Answers (2)
  1. 16 September, 02:06
    0
    I believe the answer would be C. Cause the deviation is so small most nails would be between there.
  2. 16 September, 04:25
    0
    68% that is one standard deviation. Sigma + 1 and sigma - 1
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