Arealbot
26.06.2019 •
Mathematics
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 in. 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
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Ответ:
120·(1 - Ф((5.03 - 5)/0.03)) ≈ 20 nails
Ответ:
The quotient is 1 and 1/2