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24 Cards in this Set
- Front
- Back
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ratio
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comparison of 2#s by division
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rate
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a ratio of a to b where a and b represent quantities measured in different units
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unit rate
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a rate with a demoninator of 1
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unit analysis
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the process of selecting conversion factors to produce the appropriate units
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proportion
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an equation that states that two ratios are equal
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extremes of the proportion
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in the proportion a over b equals c over d, a and d are the extremes
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means of the proportion
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in the proportion a over b equals c over d, b and c are the means
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cross products
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in the proportion a over b equals c over d, the products of ad and bc these products are equal
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similar figures
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figures that have the same shape, but not necessarily the same size
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scale drawing
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an enlarged or reduced drawing similar to and actual object or place
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scale
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the ratio of a distance to the actual distance
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percent of change
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the ratio of the amount of change to the original amount expressed and a percent
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percent of increase
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the percent of chang found when the original amount decreases
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greatest posseble error
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one half of the measuring unit for andy measurement
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percent error
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the ratio of the greatest possible error to the measurement
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probability
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how likely it is that an event will occur
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outcome
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the result of a single trial in a probability experiment
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event
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any group of outcomes in a situtation involving probability
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sample space
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all possible outcomes of an event
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theoretical probability
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the ratio of the number of favorable outcomes to the # of possible outcomes if all outcomes have the same chance of happening
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complement of an event
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all possible outcomes that are not in the event
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experimental probability
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the ratio of the #of times an event actually happens to the # of times the experiment is done
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independent events
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two events for which the outcome of one does not affect the other
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dependent events
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two events in which the occurrence of one event affects the probability of the 2nd event
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