Transcription of Normal distribution - people.umass.edu
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Normal distribution Slides developed by Mine etinkaya-Rundel of OpenIntro The slides may be copied, edited, and/or shared via the CC BY-SA license Some images may be included under fair use guidelines (educational purposes). Obtaining Good Samples Unimodal and symmetric, bell shaped curve Many variables are nearly Normal , but none are exactly Normal Denoted as N( , ) Normal with mean and standard deviation . Heights of males The male heights on OkCupid very nearly follow the expected Normal distribution -- except the whole thing is shifted to the right of where it should be. Almost universally guys like to add a couple inches.. You can also see a more subtle vanity at work: starting at roughly 5' 8", the top of the dotted curve tilts even further php/the-biggest-lies-in-online-dating rightward. This means that guys as they get closer to six feet round up a bit more than usual, stretching for that coveted psychological benchmark.
Obtaining Good Samples Unimodal and symmetric, bell shaped curve Many variables are nearly normal, but none are exactly normal Denoted as N(µ, σ) → Normal with mean µ and standard
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Ch5practice test A) Continuous B) Discrete A), Standard, Probability distribution, Standard distribution, Mean, ANALYSIS OF CONTINUOUS VARIABLES, Distribution, Using the Standardized Normal Distribution, Using the Standardized Normal Distribution Table, The Distribution of Stock Returns, Case parameter estimator standard error Estimate, Probability, Normal Probability Plots and Tests for, Probability Models for Customer-Base Analysis