Mathematics, 16.04.2020 02:03 Buttercream16
Sand is added to a timer so that the height of the sand is 30 millimeters. You must answer a trivia question before the sand in the timer falls to the bottom. The sand falls at a rate of 50 cubic millimeters per second. How much time do you have to answer the question?
Answers: 1
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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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Sand is added to a timer so that the height of the sand is 30 millimeters. You must answer a trivia...
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