21 and 22 help please URGENT
...
Answers: 3
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?
Answers: 3
Mathematics, 21.06.2019 16:50
Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.
Answers: 2
Mathematics, 21.06.2019 19:30
Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.
Answers: 1
Mathematics, 22.12.2020 03:10
Computers and Technology, 22.12.2020 03:10
Business, 22.12.2020 03:10
Spanish, 22.12.2020 03:10
Mathematics, 22.12.2020 03:10
Mathematics, 22.12.2020 03:10
Mathematics, 22.12.2020 03:10
Geography, 22.12.2020 03:10
Mathematics, 22.12.2020 03:10
Mathematics, 22.12.2020 03:10