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The number of nails of a given length is normally distributed with a mean length of 5.00 in. and a standard deviation of 0.03 in. Find the number of nails in a bag of 120 that are between 4.97 and 5.03 in. Long.
A) about 82 nails
B) about 46 nails
C) about 20 nails
D) About 40 nails
