UNIT 3 AOS 1 SAC FUELS - CH 1, 2 & 3 QUESTIONS WITH 100% CORRECT ANSWERS 2025 Define independent variable - ANS-The variable for which quantities are manipulated and changed by the experimenter and assumed to have a direct effect in the dependent variable Define dependent variable - ANS-The variable that the experimenter measures, after selecting the independent variable that is assumed to affect the depended variable. Define controlled variable - ANS-A variable that has been held constant in an experiment in order to test the relationship between the independent and dependent variable Define true value - ANS-The value that would be found if the quantity could be measured perfectly Define accuracy - ANS-Refers to how close a measurement is to the true value of the quantity being measured Define precision - ANS-Refers to how close two or more measurements are to each other, but gives no indication of how close the measurements are to the true value Define measurement result - ANS-
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