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AP Stats-Chapter 2 Flashcards

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5794983733percentilethe percent of the distribution that is below the value of that observation0
5794987009z-scorea standardized score in which x is an observation from a distribution that has a known mean and standard deviation1
5794994295ogivecumulative relative frequency graph2
5795004004density curvea curve that is always on or above the horizontal axis and has area exactly 1 underneath it.3
5795009164Normal distributiondescribes a bell-shaped, symmetric density curve with a mean of mu and standard deviations of sigma4
579501352768-95-99.7 Ruleall normal distributions obey this rule which describes what percent of observations lie within one, two and three standard deviations of the mean.5
7147655021standard Normal distributiondescribes a bell-shaped symmetric density curve with a mean of 0 and standard deviation of 1.6
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