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Unformatted text preview: 2 and the cumulative probability for z 1 4. Take the difference between these two cumulative probabilities Situation IIII: Find P(X ≤ x 1 ) or P(X ≥ x 2 ) 1. Convert each x to a zscore by z = (x – mean)/SD 2. Now we want to find P(Z ≤ z 1 ) or P(Z≥ z 2 ) 3. Find the cumulative probability for z 1 and the cumulative probability for z 2 4. Take 1 minus the cumulative probability for z 2 5. Add the cumulative probability for z 1 to the probability found in Step 4. 6. Note that this is a combination of Situations I and II....
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This note was uploaded on 10/08/2010 for the course STAT 200 taught by Professor Barroso,joaor during the Fall '08 term at Pennsylvania State University, University Park.
 Fall '08
 BARROSO,JOAOR
 Statistics, Probability

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