Find the equation of the line show

Find |−5|. a. −5 b. 5 c. one-fifth d. –one-fifth !

An equation where variables are used to represent known values—function notation true or false

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?