10% of= 1.2
Hel please...
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Mathematics, 21.06.2019 16:50
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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Which statements regarding efg are true? check all that apply.
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If a is a nonzero real number then the reciprocal of a is
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