Mathematics, 14.04.2020 23:07 sabrinarasull1pe6s61

A population of bolts has a normal distribution with a mean thickness of 20 millimeters, with a standard deviation of 0.01 millimeters. What values lie 2 standard deviations above and below the mean?

A. 19.99 to 20.01 millimeters
B. 19.97 to 20.03 millimeters
C. 19.8 to 20.2 millimeters
D. 19.98 to 20.02 millimeters

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A population of bolts has a normal distribution with a mean thickness of 20 millimeters, with a stan...

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