The standard deviation is an extremely important concept introduced in Chapter 3. Using the sample data from Exercise 1 ?Birth Weights,? part of the calculation of the standard deviation is shown in the expression below. Evaluate this expression. (Fortunately, calculators and software are designed to automatically execute such expressions, so our future work with standard deviations will not be burdened with cumbersome calculations.)

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|(3600 – 3162.5)? |