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18 Cards in this Set
- Front
- Back
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Variance |
Sum of all deviations is always 0 |
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Standard deviation |
Squaring deviations in |
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Interquartile Range (IQR) |
Resistant measure of the spread than the distance between the smallest and largest value |
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Box plot |
Graph of the 5 number summary |
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Five Number Summary |
Set of observations written in order from smallest to largest |
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Histograms |
Breaks the range of values
Height of bar shows # of individual data points |
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Categorical |
Places individuals into groups |
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Data set |
List of individuals and variables |
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Trend |
Rise or fall over time |
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Quantitative |
Takes numerical values |
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Data |
Numerical facts, numbers with a context |
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Seasonal variation |
Pattern that repeats itself |
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Distribution |
What valued and how |
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Case |
Data for one individual |
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Variable |
Varies among individuals |
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Categorical variable |
Number or percent of individuals in a category |
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Graphs |
Highlight important features of a data set |
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Distribution of a variable |
Shape - symmetric or skewed Center- middle of data Spread- range of values Outliers & deviations - observations outside of patterns |
