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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 18:40, lee1817

Ineed with number 6 , explain how to get 1978

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Mathematics, 21.06.2019 19:00, Goldenstate32

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°

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Mathematics, 22.06.2019 00:00, jtg23

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)