Change the mean of the blue distribution to 60 and notice what happens. Did its shape change, or just its position along the X-axis?

Compare the blue and red distributions. Do the areas under the curve appear to differ? They should be the same: the red distribution is wider but not as high as the blue distribution.

Experiment by changing the means and standard deviations of both distributions to explore the variety of shapes a normal distribution can take on. Note that some values will not allow the distributions to be displayed in full.