The Diameters of Pencils Produced by a Certain Machine Are

question 132

Multiple Choice

The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What is the probability that the diameter of a randomly selected pencil will be less than 0.285 inches?

• A) 0.0596
• B) 0.4332
• C) 0.0668
• D) 0.9332

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