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    %% Mean of a Fitted Distribution  

%% 
% Load the sample data. Create a vector containing the first column of students’
% exam grade data. 
load examgrades
x = grades(:,1);  

%% 
% Create a normal distribution object by fitting it to the data. 
pd = fitdist(x,'Normal')  

%% 
% Compute the mean of the fitted distribution. 
m = mean(pd) 

%%
% The mean of the normal distribution is equal to the parameter |mu|.