1 2/5 • 7 4/3
7 2/9 • 3 4/2

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?

If two points are given, then exactly one line can be drawn through those two points. which geometry term does the statement represent

Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.