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16 Cards in this Set
- Front
- Back
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Box-and-whisker plot |
A diagram that is constructed using the median, quartiles, and extreme values |
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Circle graph |
A graph that shows data as parts of a whole. In a _______, the percents add up to 100 |
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Histogram |
A type of bar graph used to display numerical data that has been organized into equal intervals |
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Interquartile range |
A range where half of the data lie between the lower quartile and upper quartile |
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Line of best fit |
A line that is very close to most of the data points in a scatter plot |
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Lower quartile |
The median of the lower half in a set of data |
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Mean |
The sum of the data divided by the number of items in the data set |
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Measures of central tendency |
Numbers that are used to describe the center of a set of data. The most common measures are mean, median, and mode |
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Measures of variation |
A measure used to describe the distribution of data |
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Median |
The middle number in a set of data when the data are ordered from least to greatest. If the data has an even number of items, the _____ is the mean of the w numbers closer to the middle |
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Mode |
The number or numbers that appear most often in a set of data. If there are 2 or more numbers that occur most often, all of them are ____ |
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Outlier |
A date value that is either much greater or much less than the median |
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Quartile |
A value that divides the data set into 4 equal parts |
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Range |
The difference between the greatest and least data value |
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Scatter plot |
In a _____, 2 sets of related data are plotted ad ordered pairs on the same graph |
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Stem-and-leaf plot |
A system where data are organized from least to greatest. The digits of the least place value usually form the leaves, and the next place value digits form the stems |
