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timeI used a student's sample of about 50 time measurements, that is, the
mean timeit took the marble to roll between the two photogates. I used the
theand the distance between the two photogates to calculate the speed of
mm formarble as it rolled off. I used the standard deviation of the time
measurements as the error in the time and a reading error of +/- .5
the distance measurement.
I'm interested. What is the mean time and the standard deviation
using this data set? Also, I suspect that you should use the
standard deviation of the mean as your uncertainty.