What is the range of g Choose 1 A
3 < 9(x) <4
B
-2 < 9(2) < 8
© -1 < 9(2) < 5
D –2 <9(x) < 5

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?

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28