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14 Cards in this Set
- Front
- Back
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Population
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The entire group of objects or individuals used for a servey
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Sample
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A part of the population
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Bias
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To not fairly represent the population
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Random sample
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A sample in which each object in the whole population has an equal chance of being selected
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Systematic Sample
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A sample of a population that has been selected using a pattern
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Stratified Sample
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A sample of a population that has been selected from subgroups
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Bar Graph
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A graph that uses vertical or horizontal bars to display data.
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Double-bar graph
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A ber graph that compared 2 similar sets of data
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Line graph
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A graph that uses lines to connect data points collected over time
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Double line graphs
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A line graph that shows how 2 similar sets of data relate over time
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Historgram
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A bar graph that shows the frequency of data within equal intervals
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Interval
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The equal separations of data used to represent a range of data
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Tally
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Tick marks used to keep track of an item or event for each interval
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Frequency table
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A table to record the number of times that an item or event occurs
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