This program is developed to solve a common probability problem. Suppose there are some balls of different colors in a bag and someone is asked to pick up two or three balls randomly. If there are 2 white, 2 black & 2 blue balls and someone wants to find out the probability of picking up two blue and white balls then this simulation will give him the desired output. Run the Simulation_main file. This can calculate the probability for with/without replacement.