The true length of boards cut at a mill with a listed length of 10 feet is normally distributed with a mean of 123 inches and a standard deviation of 1 inch What proportion of the boards will be over 125 inches in length 0 0228 0 0143 0 1762 0 0452

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The true length of boards cut at a mill with a listed length of 10 feet is normally distributed with a mean of 123 inches

The true length of boards cut at a mill with a listed length of 10 feet is normally distributed with a mean of 123 inches and a standard deviation of 1 inch. What proportion of the boards will be over 125 inches in length?

0.0228

0.0143

0.1762

0.0452

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