Estimating a Probability Distribution

Resistors with resistances eqn and eqn are connected in parallel. eqn is normally distributed with mean eqn and standard deviation eqn. eqn is normally distributed with mean eqn and standard deviation eqn. The total resistance is
eqn.

How to use the applet

  1. Choose values of eqn, eqn, eqn, eqn, using sliders.
  2. Choose a sample size eqn from the drop-down menu. Choose between eqn, eqn, and eqn.
  3. Click "Regenerate Data and Plot" to generate samples eqn and eqn, computing eqn.
  4. The sample mean and sample standard deviation are printed above the plot.
  5. Drag the edges of the red bars to input two values eqn; the applet estimates eqn.

The applet