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Mathematics, 21.06.2019 16:50, gesic2003
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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Mathematics, 21.06.2019 18:00, justijust500
Ijust need to see how to do this. so you donβt have to answer all of them just a step by step explanation of one.
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Mathematics, 21.06.2019 20:00, sanafarghal
Find the value of x. give reasons to justify your solutions! l, m β kn
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What is the derivative of 4pi and why?...
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