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What is the meaning of 18,200 and 20,200
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Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?
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Find the distance between c and d on the number line c=3 and d=11
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Find all the angles that satisfy the equation cos(θ)=32
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What is the meaning of 18,200 and 20,200...
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