Question: Referring to the data from Problem 20.57, find the strain rate using finite difference methods. Use first-order accurate derivative approximations and plot your results. Looking

Referring to the data from Problem 20.57, find the strain rate using finite difference methods. Use first-order accurate derivative approximations and plot your results. Looking at the graph, it is apparent that there is some experimental startup error. Find the mean and standard deviation of the strain rate after eliminating the data points representing the experimental startup error.

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