The Diameters of Ball Bearings Produced in a Manufacturing Process

question 49

Multiple Choice

The diameters of ball bearings produced in a manufacturing process can be described using a uniform distribution over the interval 2.5 to 4.5 millimeters. Any ball bearing with a diameter of over 4.25 millimeters or under 2.75 millimeters is considered defective. What is the probability that a randomly selected ball bearing is defective?

• A) .25
• B) .50
• C) .75
• D) 0

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