The Normal Curve in Action

  • Click-and-drag the left and right end of the interval we need to calculate the area under the genaral normal curve.
  • Change the values of the mean and standard deviation.

  • Do the probabilities (areas under the curve) change as the mean and the variance/SD vary? Should they change? Why?
  • Do the shape, spread, center of the curve change? Why?
  • Do we get the same values as the ones from standard Normal tables?