//Example 1.13 
N=4;
disp(N,"total No. of  possible outcomes (N)=");
M1=0;
disp(M1,"No. of Favorable cases(3 heads)=");
M2=4
disp(M2,"No. of Favorable cases(not more than 3 heads)=");
P1=M1/N;
P2=M2/N;
disp(P2,"Probab. of (not more than 3 heads)=",P1,"Probab. of (3 heads)=");