This preview shows page 1. Sign up to view the full content.
Unit 1 Uncertainties
There are always uncertainties involved in measurements and in calculations that involve measurements with
uncertainties.
There are also methods that can help reduce uncertainties of measure quantities.
One of these methods is to make multiply measurements of a quantity. From these measurements a standard
deviation can be calculated.
In appendix II of the lab manual this method is discussed and an example is shown.
Many of the calculators can also perform a standard deviation. Break out the manual for the calculator and
practice with the example in the back of the book there will be other labs where you will use the standard
deviation and the calculator is a time saving device.
Standard Deviation is a statistical function.
Below are a few examples for a few different calculators. In our example we will use the data from the manual
on page 131.
TI30 For most TI 30 models.
Enter each data point
by entering the number then pressing the
+ key. Once
all the data points has been enter select 2
This is the end of the preview. Sign up
to
access the rest of the document.
 Spring '08
 WHITE
 Physics

Click to edit the document details