# The population mean thickness of some wire is 12 mm with a standard deviation of .8 mm. A random sample of 100 pieces of wire is to be selected. What is the mean, variance and shape of this sample of 100 wires?

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What is the probability that the sample mean of the 100 pieces of wire will be between 11.9 and 12.1 mm?

What is the probability that the sample mean of the 100 pieces of wire will be between 11.9 and 12.1 mm?

##### 1 Answer

Dec 14, 2017