Help needed in some qutions about normalize histogran functions(in Q3 bulding like "plot (X'Y)

Hello, I am very much starting in Matlab and got stuck with difficulties with questions 3 and 4 (attaching my solutions to the previous sections) Can anyone prepare me for question 3?

%% Question 1:

Yi_mean=2;

Yi_STD=1;

M=10000;

Yi=normrnd(Yi_mean,Yi_STD,1,M);

figure(1)

NUM_BINS=50;

h1=histogram(Yi,NUM_BINS);

xlabel('Y');

ylabel('Frequency');

%% Question 2:

hold on;

NUM_BINS=100;

h2=histogram(Yi,NUM_BINS);

hold off;

legend('Question 1','Question 2');

title('Histograms Q1,Q2: not normalized');

Answer 1

[Steven Lord]

Read through the documentation page for the histogram function to see if it has any options and/or properties that will be of use in normalizing the histogram.

doc histogram

Spoiler alert: it does!