formulacardE3_2023

formulacardE3_2023 - Formula Card for Chapters Five and Six...

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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 z-score using X Z - =- Look your z-score 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 =- 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...
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This note was uploaded on 01/11/2012 for the course STA 2122 taught by Professor Staff during the Winter '08 term at FIU.

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formulacardE3_2023 - Formula Card for Chapters Five and Six...

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