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15 Cards in this Set
- Front
- Back
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survey
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a set of questions that is used to gather information about a group or to find the preference of a group
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sample
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a part of the group that is chosen to represent the whole group or population
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population
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the entire group being surveyed
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frequency
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the number of times a piece of data occurs
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mean
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an average of a group of numbers
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median
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the middle number when data are arranged in order
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mode
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the number of item that occurs most often in a set of data
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range
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the difference between the highest and lowest numbers in a ordered series of numbers
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stem-and-leaf plot
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a graph that organizes data by place value
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pictograph
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a graph that uses symbols or pictures and a key to display countable data
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bar graph
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a graph that displays countable data with vertical or horizontal bars; compares fact about groups of data
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line graph
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a graph that shows how data changes over time
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circle graph
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a graph that shows how parts of the data are related to the whole and to each other
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line plot
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a visual picture of data so you can quickly see the most common numbers
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outlier
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a data value that is well-separated from other data values in a set
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