This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
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  = 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 = 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...
View
Full
Document
This note was uploaded on 01/11/2012 for the course STA 2122 taught by Professor Staff during the Winter '08 term at FIU.
 Winter '08
 STAFF
 Normal Distribution, Probability

Click to edit the document details