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A fabric company sells rolls of fabric. Their top selling fabric roll is cut to a...

A fabric company sells rolls of fabric. Their top selling fabric roll is cut to a length of 12 feet and rolled up for the customer. The actual lengths of the fabric on each roll is normally distributed with a mean of 11.97 ft and a variance of 0.09 .

  1. What proportion of these fabric rolls are longer than 12.02 feet?
  2. What proportion of these fabric rolls are between 12.00 feet and 12.10 feet?
Math   Statistics-And-Probability   
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