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I’m having difficulties understanding what values to use in the chart…..
What chapter can this be found in the Book?
Not 100% sure if this is correct, but take a look and see if it make any sense to you.
A contingency table is a basic tool in statistics, just as a tree is a basic tool for probability. I take this as a criticism. In the future, I will make sure to spend more classtime explaining and using the tool. The book does discuss them in 13.3. There is also a short wikipedia page that you might take a peak at:
http://en.wikipedia.org/wiki/Contingency_table
Note that all of these use frequencies instead of the probabilities (decimals) that I used in class. But going from one to the other is not hard: divide each of the entries by the total number in the sample to convert to probabilities.
Ironically enough, I am using the “statistics” tool for a problem in probability. The material being tested by this question comes from chapter 4. In particular the vertical slash | refers to conditional probability.
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