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+fish = readtable("fish.txt");
+p = table2array(fish(:, 2)); % Import the Price 1970 col from "fish.txt"
+
+mean(p);
+median(p);
+min(p);
+max(p);
+range(p);
+
+xvar = var(p);
+xdev = std(p);
+sqrt(xvar) == xdev; % Prints "1"
+
+% ---
+load("nations.mat");
+MC = cov(nations);
+size(MC);
+data1 = nations(:, 1);
+data2 = nations(:, 2);
+
+corrcoef(data1, data2);
+
+% plot(data1, data2, 'x');
+
+load("T.mat");
+Tarray = table2array(T);
+sp = Tarray(:, 1);
+dn = Tarray(:, 2);
+corr = corrcoef(sp, dn);
+
+disp(corr);
+plot(sp, dn, 'x')
+xlabel("Speed");
+ylabel("Density");
+
+load earth;
+histogram(earth);
+histfit(earth);
+quantile(earth, 2);