The student repeats the measurements and obtains more values of the acceleration : 5.15 m s 2 , 4.22 m s 2 , 4.63 m s 2 , 3.92 m s 2 , 4.58 m s 2 , 4.27 m s 2 . Calculate the best estimate of a and the random uncertainty of these results (dont forget to include the very first value from part c).

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