P

VIII. During the repeated measuring for the flow velocity(V) in one low speed wind tunnel, the measured velocity series have been gotten as following(unitm/s),8.018.148.218.368.428.538.598.718.90. If the initial and final reading of the measuring instrument atV=0m/sis0m/sand0.8m/srespectively and the interval time between two contiguous points is same, please express the final result at confidence factortp=3. (20 points)

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