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Assume that round widgets from a manufacturing process have diameters that are normally distributed with mean 175.25 centimeters and standard deviation 2.35 centimeters. The chances

Assume that round widgets from a manufacturing process have diameters that are normally distributed with mean 175.25 centimeters and standard deviation 2.35 centimeters. The chances that a randomly selected widget has diameter less than 166 centimeters is closest to which of the following?

a. 1 out of 25000
b. 1 out of 5000
c. 1 out of 50000
d. 1 out of 1000

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