SOCS: Box Plots & Stem Plots

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Presentation transcript:

SOCS: Box Plots & Stem Plots Judith Loya Julissa Padilla Andrew Crosby John Rebol

box Plot: What is it used for? Numerical / Quantitative measures only Best for skewed data

SOCS: SHAPE Shape: Best to represent skewed data. Represents the shape that the data set makes in the graph.

SOCS: Outliers Outliers

SOCS: center Center: Use a Median measurement of center (outlier resistant)

SOCS: Spread Spread: IQR and Range

Stem Plot: What is it used for? Numerical Data

Stem Plot: How are they made? Divide each observation into a stem or leaf Leaf: Last digit in observation Stem: Contains all digit that precedes the leaf One Digit numbers have a 0 in the stem

SOCS: SHAPE Sideways looks like a Histogram

SOCS: Outliers

SOCS: CENTER Mean if symmetric Median if not symmetric because it is resistant to outliers (graph to view symmetry)

SOCS: SPREAD Organized highest to lowest numbers