Question: Q 1. Compute the mean value and standard deviation for the following Rockwell B hardness measurements (show your work): 83.3,84.7,86.9,83.5,87.2,86.3,86.4,82.8 Recall: x=Ni=1Nxis=N1i=1N(xix~)2

Q 1. Compute the mean value and standard deviation for the following Rockwell B hardness measurements (show your work): 83.3,84.7,86.9,83.5,87.2,86.3,86.4,82.8 Recall: x=Ni=1Nxis=N1i=1N(xix~)2

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