Vocabulary words from the proportions unit.
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Ratio | A comparison of two numbers by division.
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| Rate | A ratio of two numbers with different units.
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| Unit Rate | A rate with a denominator of 1.
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| Proportion | An equation which states that two ratios are equal.
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| Cross Product | For a proportion ( a/b=c/d ), ad = cb is the cross product.
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| Similar Figures | Two figures that have the same shape but not necessarily the same size.
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| Scale Drawing | Enlarged or reduced drawing that is similar to an actual object or place.
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| Scale | Ratio of the distance in the drawing or model or the distance of the actual object.
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| Percentage of Change/Increase/Decrease | A ratio of the amount of change to the original amount expressed as a percent. This can be an increase or a decrease.
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| Greatest Possible Error | When taking measurements the greatest possible error is ½ the unit of measurement.
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| Percent Error | A ratio of the greatest possible error to the length of the measurement represented as a percent.
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| Probability | How likely it is that something will occur, written as P(x) where x is the event.
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| Outcome | Result of a single trial.
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| Event | A desired outcome or group of outcomes.
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| Sample Space | All the possible outcomes.
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| Theoretical Probability | Ratio of the number of favorable outcomes to the number of possible outcomes.
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| Compliment of an Event | All of the possible outcomes that are not part of the event.
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| Experimental Probability | Ratio of the number times your event occurs to the number of the time the experiment is done.
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| Independent Event | Events that do not influence one another.
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| Dependent Event | Events that influence each other.
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Created by:
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