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1. The diameters of ball bearings are distributed normally. The mean diameter is 51 millimeters and the variance is 25. Find the probability that the

1. The diameters of ball bearings are distributed normally. The mean diameter is 51 millimeters and the variance is 25. Find the probability that the diameter of a selected bearing is greater than 46 millimeters. Round your answer to four decimal places.

2. The diameters of ball bearings are distributed normally. The mean diameter is 71 millimeters and the standard deviation is 4 millimeters. Find the probability that the diameter of a selected bearing is greater than 66 millimeters. Round your answer to four decimal places.

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