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Unformatted text preview: Formula Card for Chapters Five and Six For Problems Dealing With the Normal Distribution (they say normally distributed in the directions…) There are three cases 1. Directions say: Find the probability of randomly selecting a … Draw the bell curve, label the mean, and standard deviation Put a Z number line and an X number line at the bottom of the curve Shade the desired area that you are looking for Convert your x – score into a zscore using X Z μ σ = Look your zscore up on the table from the book (that is the area from your z score to the mean on the curve) If necessary perform the arithmetic needed to get your desired area 2. Directions say: Find the probability of randomly selecting n …that have an average … Draw the bell curve, label the mean, and standard deviation **do not forget that for this problem the stan. dev. becomes X n σ σ = Put a Z number line and an X number line at the bottom of the curve Shade the desired area that you are looking for Convert your...
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This note was uploaded on 05/17/2008 for the course STA 2023 taught by Professor Mcguckian during the Spring '08 term at FIU.
 Spring '08
 McGuckian
 Normal Distribution, Probability

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