Which set of ordered pairs is not a function? a. (3, 1), (–1,1), (1, 1), (3, −1) b. (–3, 1), (–1, 1), (1, 1), (3, 1) c. (–3, 1), (–1, –1), (1, 1), (3, 1) d. (–3, 1), (–1, –1), (1, 1), (3, −1)

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

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9