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diff --git a/539/CH6/EX6.6.b/Example_6_6b.sce b/539/CH6/EX6.6.b/Example_6_6b.sce
new file mode 100755
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+++ b/539/CH6/EX6.6.b/Example_6_6b.sce
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+//Standard Deviation Computations
+
+clear;
+clc;
+
+printf("\tExample 6.6b\n");
+
+//First and Last point are arbitary to plot the required 4 points
+n=[0 1 2 3 4 5];
+TS=[510 520 512 515 522 525];
+
+i=2;
+TSmean=0;
+
+for i=2:5
+    TSmean=TSmean+(TS(i)/4);
+end
+
+//Standard Deviation
+j=0;
+std=0;
+
+for i=2:5
+    std=std+((TS(i)-TSmean)^2/(4-1));
+end
+
+printf("\nStandard deviation is %.1f MPa\n",sqrt(std));
+
+//End
+\ No newline at end of file