B-Po-N Approx
Instructions:
[1] Click respective check boxes to display the desired pdf chart/graph.
          Binomial                       :  Binomial pdf where you can change the "n" and "p" values through the slider.
          Poisson(np)                  :  Poisson pdf where the Mean takes the value of "np" from the Binomial Distribution.  
          Poisson(lamda)            :  Poisson pdf with independent slider for the mean value.
          Normal(np,npq)           :  Normal pdf with mean = "np" and variance = "npq", where n,p are values from Binomial sliders.
          Nomral(lamda,lamda) :  Normal pdf with mean=variance=lamda taken from Poisson(lamda) slider.
[2] By changing the values of the sliders, compare the pdfs of different distributions.