Question 1.87

1.87 Sketch some Normal curves.

  1. Sketch a Normal curve that has mean 30 and standard deviation 4.
  2. On the same x axis, sketch a Normal curve that has mean 20 and standard deviation 4.
  3. How does the Normal curve change when the mean is varied but the standard deviation stays the same?

1.87

(c) The curve shifts to the left or right, but the spread remains the same.