How big is your sample?

What does the middle of the data look like? Describe the measures of central tendency. Are those measures close or do they vary widely? How good is the estimate of the mean? How sure can you be about that estimate? What is the relationship between the median and the mean?

What is the dispersion (the spread) of the data? How much data lies within particular standard deviations from the mean? ThinkCentral Limit Theorem and Chebyshevs Theorem.

Descriptive Statistics ** Correlation is significant at the 0.01 level (2-tailed)