hypergeometric and binomial comparison

% When population size is much larger than number of samples drawn n>>m
x = 0:4;
m= 300;
k= 100;
n= 4;
Px= hygepdf(x,m,k,n);
p= k/m;
Px2= binopdf(x,n,p);
plot(Px,'r');
hold
plot(Px2,'b');
title('WHEN POPULATION SIZE IS MUCH LARGER THAN SAMPLE');
legend('Hypergeometric','Binomial');
xlabel('Number of samples --->');
ylabel('Probability --->');

% When Population size is near to the number of samples drawn
figure;
x2= 0:150;
m2=300;
k2=100;
n2=150;
Px3= hygepdf(x2,m2,k2,n2);
p2= k2/m2;
Px4= binopdf(x2,n2,p2);
plot(Px3,'r');
hold
plot(Px4,'b');
title('WHEN POPULATION SIZE IS CLOSER TO SAMPLE');
legend('Hypergeometric','Binomial');
xlabel('Number of samples --->');
ylabel('Probability --->');