What is the area of the shaded region between the two z-scores indicated in the standard normal curve shown below?
Z=-1.26
z=0.86
A. 0.45
B. 0.7113
C. 0.7013
D. 2.05

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

How can you tell when x and y are not directly proportional?