A sequence of the form a1, a1+d, a1+2d, a1+3d, . . . is called a/an .

Given a circle with a radius of 4, which is the circumference

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?

16 more than the product of 5 and p