Understanding z scores

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Understanding z scores

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Understanding z scores. Standard scores. Standard scores assume a normal distribution They provide a method of expressing any score in a distribution in terms of its distance from the mean in standard deviation units. Z-score. A raw score by itself is rather meaningless. - PowerPoint PPT Presentation

Transcript of Understanding z scores

Understanding z scores

Understanding z scores

Standard scoresStandard scores assume a normal distributionThey provide a method of expressing any score in a distribution in terms of its distance from the mean in standard deviation units2

Z-scoreA raw score by itself is rather meaningless.What gives the score meaning is its deviation from the meanA Z score expresses this value in standard deviation units3

Z-score

4Raw score

Mean

Standard deviation

Z score formula

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Z score computation

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Standard Deviation Z Scores

Standard Deviation Z Scores

FIXING Your Credit Objectives: Understanding how credit scores are determined. Understanding how consumers actions impact their credit scores.

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z-SCORES AND THE NORMAL CURVE MODEL - …ocw.metu.edu.tr/pluginfile.php/2457/mod_resource/content...z-SCORES AND THE NORMAL CURVE MODEL 1 Understanding z-ScoresScores 2 z-Scores •A

z-SCORES AND THE NORMAL CURVE MODEL - …ocw.metu.edu.tr/pluginfile.php/2457/mod_resource/content...z-SCORES AND THE NORMAL CURVE MODEL 1 Understanding z-ScoresScores 2 z-Scores •A

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Introducing z -scores & the normal distribution

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metals 2011 Laboratory mean values and z-scores · metals 2011 Laboratory mean values and z-scores Laboratory lead Z score mangan Z score nickel Z score iron Z score cobalt Z score

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5.5 Z-Scores filled in

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INTRODUCTION TO z-SCORES The purpose of z-scores, or standard scores, is to identify and describe…

INTRODUCTION TO z-SCORES The purpose of z-scores, or standard scores, is to identify and describe…

5.5 Z-Scores€¦ · NEL 5.5 Z-Scores 255 5.5 Z-Scores Use z-scores to compare data, make predictions, and solve problems. LEARN ABOUT the Math Hailey and Serge belong to a running

5.5 Z-Scores€¦ · NEL 5.5 Z-Scores 255 5.5 Z-Scores Use z-scores to compare data, make predictions, and solve problems. LEARN ABOUT the Math Hailey and Serge belong to a running