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Mathematics, 09.08.2021 23:30 moniquejackson2
The lengths of iron rods produced by a machine is assumed to have a Normal distribution with a mean of 5 cm and a standard deviation of 2cm. A sample of 4 rods is selected at random for inspection. What should be the probability that the mean length of the 4 rods is less than 5.2cm
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The lengths of iron rods produced by a machine is assumed to have a Normal distribution with a mean...
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