1. Define a. Asymptotic b. The normal curve c. z scores d. Standard scores 2. What is a score transformation? Provide an example. 3. What are the values of the mean and standard deviation of the z distribution? 4. Must the shape of a z distribution be normal? Explain. 5. Are all bell-shaped distributions normal distributions? Explain. 6. If a set of scores is normally distributed, what information does the area under the curve give us? 7. What proportion of scores in a normal distribution will have values lower than z = 0? What proportion will have values greater than z = 0?