Readers are encouraged to use Microsoft Excel to solve this problem.What is the standard deviation of the following five numbers: 6.40, 7.20, 3.50, 9.20, 5.10?

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The standard deviation, a measure of the precision of the data, is given by the symbol F1F1F1S1F1F1F10, defined as: 11ea6816_3f28_f770_b611_9bf500e3ef7e_TB6242_00 Recall that an exponent of 11ea6816_3f28_f771_b611_f52213609d7b_TB6242_11 means the same as the square root 11ea6816_3f29_4592_b611_07d9864d7c9d_TB6242_11 .The standard deviation is a measure of the deviation or spread of the data points from the mean value.The standard deviation is often expressed in a format of the mean value ±F1F1F1S1F1F1F10.A large F1F1F1S1F1F1F10 value indicates data with a large range and, therefore, poor precision.

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