Marginal Probability Calculator_Continuous Case only

The joint mass function f(x,y) of a pair of discrete random variables X and Y computes probabilities regarding the location of the pair in the plane: X and Y. From this, it is possible to derive the two marginal mass functions. The first marginal mass function of X computes probabilities regarding the location of the variable X alone, and the second mass function computes probabilities regarding the location of second variable Y alone.