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U1L1: Conversions
ECPS Integrated Math I: Unit 1 Lesson 1 Data Analysis and Representation
Term | Definition |
---|---|
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. |