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Student Solution Manual for Mathematical Methods for Physics and Engineering, Third Edition by M. P. Hobson, K. F. Riley

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31

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Statistics

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31.1 A group of students uses a pendulum experiment to measure g, the acceleration of free fall, and obtains the following values (in ms−2): 9.80, 9.84, 9.72, 9.74, 9.87, 9.77, 9.28, 9.86, 9.81, 9.79, 9.82. What would you give as the best value and standard error for g as measured by the group?

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We first note that the reading of 9.28 m s−2 is so far from the others that it is almost certainly in error and should not be used in the calculation. ...

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