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Alg I Glencoe L 2-7

Alg I Glencoe L 2-7 Percent of Change

QuestionAnswer
Percent of change The ratio of the change in an amount to the original amount expressed as a percent.
Percent of increase The ratio of an amount of increase to the previous amount, expressed as a percent.
Percent of decrease The ratio of an amount of decrease to the previous amou nt, expressed as a percent.
Quartiles The values that divide a set of data into four equal parts.
Deciles Divides data into ten equal sections.
Percentile A measure that is used to report test data. Tells what percent of the total data values are below a given value.
Mean The sum of the numbers in a set of data divided by the number of items in the data set.
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.
Mode The number(s) that appear most often in a set of data.
Created by: Phyllis Manning