Variables: explain what a continuous random variable is list examples.

Variables.

1. Explain what a continuous random variable is. List examples. (4pts)
2. Explain some basic characteristics of Normal Distribution. (4pts)

3. What is the standard Normal Distribution? (2pts)

4. Explain the difference between a raw score (x value) and a standard score(z value). (4pts)

5. How to convert a raw score to a standard score; and how to convert a standard score to a raw score? (4pts)

6. Explain how to use Table 2 for each of the following intervals:
a) z < a (less than)

b) z > a (more than)

c) a < z < b (between)

Here a and b are constant z units. b is larger than a

Describe the strategies we mentioned in class for theses 3 cases (6pts)
7. Explain what the Inverse Normal Distribution is. How would you
figure out whether a problem is Normal Distribution type or Inverse Normal type? (4pts)