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Mathematics, 02.11.2019 03:31 hannahkelly1629

The car contains 50,000 rods. claude ong, manager of quality assurance, directs his crew measure the lengths of 100 randomly selected rods. if the population of rods have a mean length of 120 inches and a standard deviation of 0.05 inch, the probability that claude's sample has a mean less than 119.985 inches is
a) 0.9974
b) 0.0026
c) 0.4987
d) 0.0013
e) 0.0030

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