//Caption: Probability
//Example 2.1.a
//page no 43
//Find the Probability 
clc;
clear;
redballs=3;
whiteballs=4;
blackballs=5; 
//P=ways of choosing a red ball/Total no. of ways choosing a ball
Pro=redballs/(redballs+whiteballs+blackballs);
disp("Probability Getting red ball is");
disp(Pro,"P(R)=");