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
Answers: 1
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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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