1. Both the range and standard deviation are measures of variability. If the variability of a set of scores changed, would you always expect the values of the range and standard deviation to change too? If so, would you expect these values to always change in the same direction? Explain.

2. Suppose that you wanted to compare two sets of 50 scores each. Discuss how you might do so, and state the advantages and disadvantages of each method you propose.