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diff --git a/2294/CH12/EX12.19/EX12_19.sce b/2294/CH12/EX12.19/EX12_19.sce
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+//Example 12.19
+//Find the required values.
+x=[0,0;8,8;8,0]
+y=[0,0;3,3;0,3]
+deff('z=f(x,y)','z=x/6')
+I=int2d(x,y,f)
+disp(I,'E[X]=')
+deff('z=f(x,y)','z=y/6')
+I=int2d(x,y,f)
+disp(I,'E[Y]=')
+deff('z=f(x,y)','z=x*y/6')
+I=int2d(x,y,f)
+disp(I,'E[XY]=')
+