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# U1L1: Conversions

### ECPS Integrated Math I: Unit 1 Lesson 1 Data Analysis and Representation

TermDefinition
Conversion factor a ratio of two equivalent measures in different units.
Ratio a term that compares two numbers by division.
Rate a ratio that compares quantities measured in different units
Unit rate a rate with a denominator of 1 unit
Unit analysis a process by which units of each quantity are included in a calculation to determine the unit of the answer
Level of accuracy a measurement that appropriately scales a given real-world situation
Percent change expresses an amount of change as a percent of an original amount
Percent increase when a new amount is greater than the original amount
Percent decrease when a new amount is less than the original amount
Relative error the ratio of the absolute value of the difference of measured value and an actual value compared to an actual value (measured-actual)/(actual)
Percent error the relative error expressed as a percent.
Created by: arouson