Sparker free fall and Experiment Uncertainty Lab

On this lab, we handle determination of g(and learning a bit about Excel) and some statistics for analyzing data

This is a Excel about our experiment's date. the time is increasing 1/60 each time and the distances are what we measure.

And this picture is show what the date classmates found.

As these dates, we get nine different value of g, then we plus all of them and divide nine, then we get the average of g is 956.03. Then we use each value of g to minus it. then we get the deviation from the mean value. After of these, we use this function

Then we use the square of every mean value and plus them all and divide the number how many dates we get, then square root it. Now we get the value of standard deviation of mean, and the correct value of g will be in the area of 956.03+/-20.1234523.