The standard normal curve shown below is a probability density curve for a continuous random variable. this means that the area underneath the entire curve is 1. what is the area of the shaded region between the two z-scores indicated in the diagram?
a. 0.4263
b. 0.8937
c. 0.7881
d. 0.6375
e. 0.6825

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.