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Weights of a certain model of fully loaded gravel trucks follow a normal distribution with mean μ=6.4 tons and standard deviation σ=0.3 ton. What is the probability that a fully loaded truck of this...

A wildlife study is designed to find the mean weight of salmon caught by an Alaskan fishing company. As a preliminary study, a random sample of 50 freshly caught salmon is weighed. The sample standard...

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