Chapter 6: Normal Probability Distributions

The 40th percentile is 14. If you find the exact DECIMAL value of p: then pth percentile is the average of the data (x) values in that line and the next line down of the table . Example: Find the 20th percentile: Look down the cumulative relative frequency column for 0.20 You find 0.20, on the line where x = 10. ................
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