Error Analysis - Mei-Ting Song Zachary Butler Physics 101L...

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Mei-Ting Song Zachary Butler Physics 101L Section 6 Error Analysis Prelab Most scientists use error analysis to find out whether or not their experiment is accurate, precise and how variable their experiment is. The lab I am going to perform today will explain to me what types of errors there are and how to calculate these errors, to do that we will be using “a meter stick, a balance, a spark timer, a force table, timers and a compass” in our experiment. The first concept we learn is that for every device there is always error that is “one-half the smallest scale division of the device.” Therefore, if a stop watch is measured to the hundredth of a second then there would be a leeway of plus or minus .01 seconds. The second concept is that if you have a large enough amounts of data you can used the Arithmetic Mean to find the average value. It is still considered to be the true value of what you’re measuring. The Gaussian
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