math

The diameter of a pipe is normally distributed with a mean of 0.4 inches and a variance of 0.0004. What is the probability that the diameter of a randomly selected pipe will exceed 0.44 inches?

asked by missy
  1. If the variance is 0.0004, the standard deviation is the square root of that, or 0.02.

    Using the computational tool at
    http://psych.colorado.edu/~mcclella/java/normal/accurateNormal.html ,

    the probability is 9.1%

    posted by drwls

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