Alg I Glencoe L 2-7 Percent of Change
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| Percent of change | The ratio of the change in an amount to the original amount expressed as a percent.
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| Percent of increase | The ratio of an amount of increase to the previous amount, expressed as a percent.
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| Percent of decrease | The ratio of an amount of decrease to the previous amou
nt, expressed as a percent.
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| Quartiles | The values that divide a set of data into four equal parts.
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| Deciles | Divides data into ten equal sections.
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| Percentile | A measure that is used to report test data. Tells what percent of the total data values are below a given value.
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| Mean | The sum of the numbers in a set of data divided by the number of items in the data set.
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| Median | The middle number in a set of data when the data are arranged in numerical order. If the data set has an even number, find the mean of the two data points.
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| Mode | The number(s) that appear most often in a set of data.
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Created by:
Phyllis Manning
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