How to plot histograms of two different classes in a single plot?

I have to plot histogram of two clases in to single plot. One class is of distance of authenticated users and others if of distance of intruduers achieved by L2-NORM.

intruder_dist =[0.02, 0.05,0.03......] and is its corresponding number is: intruder_num = [10,2,40,..........]

Same is with authencticated users distances. authenticated_dist =[0,0.002,0.001......] and another its corresponding number: authenticated_num = [30,50,70,..........] Below is the histogram that I want to achieve. How to plot it in matlab. Thanks.

Answer 1

[José-Luis]

histogram(rand(100,1));
hold on
histogram(rand(100,1)-2,'FaceColor','r');