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Chapter 2: Modeling Distributions of Quantitative Data

Horizontales
The pth _____ of a distribution is the value with p% of observations less than or equal to it.
A(n) _____ is described by a symmetric, single-peaked, bell-shaped density curve called a Normal curve.
For an individual value in a distribution the _____ aka z-score tells us how many standard deviations from the mean the value falls and in what direction.
Verticales
A cumulative _____ graph plots a point corresponding to the percentile of a given value in a distribution of quantitative data. Consecutive points are then connected with a line segment to form the graph.
A(n) _____ is a curve that is always on or above the horizontal axis and has area exactly 1 underneath it. The area under the curve and above any interval of values on the horizontal axis estimates the proportion of all observations that fall in that interval.
The _____ Normal distribution is the Normal distribution with mean 0 and standard deviation 1.