1. True/False: The best way to describe a skewed distribution is to report the mean. 2. What percentage of the following scores fall within two standard deviations from the mean? 54, 52, 51, 50, 36, 55, 44, 46, 57, 44, 43, 52, 38, 46, 55, 34, 44, 39, 43, 36, 55, 57, 36, 46,49, 46, 49, 47

3. Given a test that is normally distributed with a mean of 100 and a standard deviation of 10, find:

a) the probability that a single score drawn at random will be greater than 110 b) the probability that a sample of 25 scores will have a mean greater than 105

4. If the standard error of the mean is 10 for N = 16, what is the standard error of the mean for N = 25?