1. Notice the difference in shapes between the standard normal and the t distribution. Which has more scores in the middle? Which has more scores in the tails?

  2. Increase the degrees of freedom to 10 (the degrees of freedom are shown on the last line.) Is there still a difference between the distributions. Zoom in to look closely at the tails.

  3. Repeat step 2 with 20 degrees of freedom and then with 50 degrees of freedom.