Roth is a computer-consulting firm. The number of new clients that they have obtained each month has ranged from 0 to 6. The number of new clients has the probability distribution that is shown below. Number ofNew Clients Probability 0 0.05 1 0.15 2 0.20 3 0.25 4 0.20 5 0.10 6 0.05 What is the expected number of new clients per month?

Which of the following is a characteristic of the standard normal probability distribution?

In a standard normal distribution, the

The center of a normal curve

The binomial probability distribution is used with a(n) _____ random variable.

A negative value of z indicates that

The process where surface waters are pushed away from the land and replaced by nutrient-rich bottom waters is called

The atmosphere is divided into several layers. The troposphere is the

Short wavelength radiant energy is emitted by

Relative dating tells us the