Difference between revisions of "TF ErrAna Homework"

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<pre>
 
<pre>
  
root [1] TH1F *Hist1=new TH1F("Hist1","Hist1",50,0.5,49.5)
+
root [1] TH1F *Hist1=new TH1F("Hist1","Hist1",50,-0.5,49.5)
 
root [2] Hist1->Fill(10);
 
root [2] Hist1->Fill(10);
 
root [3] Hist1->Draw();
 
root [3] Hist1->Draw();
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You can use the above commands but you need to change the names and numbers above to receive credit.  You must also add a title to the histogram which contains your full name.  You will printout the histogram and hand it in with the above two problems.
 
You can use the above commands but you need to change the names and numbers above to receive credit.  You must also add a title to the histogram which contains your full name.  You will printout the histogram and hand it in with the above two problems.
 +
 +
;Notice how the square rectangle in the histogram is centered at 10!
  
 
=Mean and SD=
 
=Mean and SD=

Revision as of 22:16, 9 January 2010

Errors

Give examples of 5 a Systematic error.

Find 3 published examples of data which is wrongly represented.

Identify what is incorrect about it. What does it mean to be wrongly presented? A typical example is a political poll which does not identify the statistical uncertainty properly or at all.

Create a Histogram using ROOT

some commands that may interest you


root [1] TH1F *Hist1=new TH1F("Hist1","Hist1",50,-0.5,49.5)
root [2] Hist1->Fill(10);
root [3] Hist1->Draw();

You can use the above commands but you need to change the names and numbers above to receive credit. You must also add a title to the histogram which contains your full name. You will printout the histogram and hand it in with the above two problems.

Notice how the square rectangle in the histogram is centered at 10!

Mean and SD

Probability Distributions

Error Propagation

[1] Forest_Error_Analysis_for_the_Physical_Sciences