2. Tell whether each function is linear or nonlinear. Function A
Function B
greatest
initial
value
х
0
1
2
3
y = -x + 5
у
0
1
8
27
Function A is
br Function B is
20

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?