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18 Cards in this Set
- Front
- Back
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bar graph
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A type of graph in which the length of bars oare used to represent and compare data.
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box and whisker plot
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A data display that divides a data set into four parts: the lower extreme, lower quartile, media upper quartile and upper extreme
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conjecture
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a conclusion derived from looking at data
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frequency table
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a table used to help organize data values into intervals
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interval
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the frequency of an interval is the number of values that lie in that interval
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histogram
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a graph that displays data from a frequency table. It has a bar for each interval that contains data values. Lenth of the bar=frequency for the interval
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interquartile range
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the difference between the upper and lower quartiles in a box-and-whisker plot
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line plot
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a type of graph in which points representing data pairs are connected by line segments
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lower extreme
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the least value in a data set
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lower quartile
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the median of the lower half of a data set
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mean
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The sum of the values in a data set divided by the number of values
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median
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The middle value in a daa set when the values are written in numerical order. (Mean of two middle values if even # of values)
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mode
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The value in the data set that occurs most often. A data set can have no mode, one mode or more than one mode
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range
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The difference of the greatest and least values in a data set
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scatter plot
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The graph of a set of data pairs (x,y), which is a collection of points in a coordinate plane
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stem and leaf plot
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Each data value is separated into a leaf(last digit) and stem(remaining digits) The leaves for each stem are listen in order from least to greatest in an ordered stem and leaf plot
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upper extreme
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The greatest value in a data set
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upper quartile
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The median of the upper half of a data set
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