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+//Chapter 07: Discrete Probability
+
+clc;
+clear;
+
+function result=combination(n,r) //function definition
+i=n
+num=1
+denominator=1
+l=(n-r)+1
+u=n
+for i=l:u //to compute the value of the numerator
+num=num*i
+end
+for j=1:r //to compute the value of the denominator
+denominator=denominator*j
+end
+result=num/denominator 
+return result
+endfunction
+
+n1=input('Enter the total numbers: ')
+n2=input('Enter the amount of numbers to pick correctly to win the prize:')
+win=combination(n1,n2)
+p_win=1/win
+mprintf('The total no of ways to choose %d numbers out of %d number is: %d',n1,n2,win)
+mprintf('\nThe probability of a winning combination is')
+disp(p_win)