Please solve with explanation 20 points
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Answers: 2
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?
Answers: 3
Mathematics, 21.06.2019 20:10, kendall984
Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70ΒΊ. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm
Answers: 1
Mathematics, 21.06.2019 20:30, lemusanaisabel6064
What is negative 3/9 times negative 2/8 ?
Answers: 1
Social Studies, 27.02.2020 01:50