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3 years ago

14

The number of nails of a given length is norm ally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 i

n. Find the number of nails in a bag of 120 that are over 5.03 in. long.
A. About 40 nails
B. About 30 nails
C. About 20 nails
D. About 10 nails

1 answer:

natta225 [31]3 years ago

6 0

Answer:

120·(1 - Ф((5.03 - 5)/0.03)) ≈ 20 nails

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