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35 Cards in this Set
- Front
- Back
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Average
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The sum of 2 or more quantities divided by the number of quantities; the mean.
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Bar Graph
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graph using bars to compare quantities. The height or length of each bar represents a designated number. The bars are SEPARATED from each other to highlight that the data are discrete or counted data.
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Categorical Data
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Data that are “words” that represent possible responses within a given category. Frequency counts can be made of the values for a given category.
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Central Tendency
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The mean, median, and mode of a set of data.
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Coordinate Graph
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A graphical representation in which points are used to denote pairs of related numerical values.
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Data
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Information, often numerical, which is gathered for statistical purposes.
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Frequency
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A number of times an item occurs.
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Graph
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A visual way to display data.
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Histogram
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A bar graph in which each bar represents an interval rather than a specific value.
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Interval
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The difference between successive values on a scale.
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Key
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A sample data point used to explain the stems and leaves in a stem and leaf plot.
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Leaves
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The units digit written to the right of the vertical line in a
stem and leaf plot. |
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Line Graph
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A graph used to show how a set of data changes over a
period of time. |
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Line Plot
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A diagram that shows the frequency of data on a number
line. |
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Mean
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The sum of the numbers in a set of data divided by the
number of pieces of data; the average. |
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Median
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The middle number in a set of data when the data are
arranged in numerical order. If the data has an even number, the median is the mean of the two middle numbers. |
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Mode
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The number(s) or item(s) that appear most often in a set of
data. |
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Numerical Data
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Values that are numbers such as counts,
measurements, and ratings. |
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Ordered Pair
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A pair of numbers used to locate a point in the
coordinate system. The ordered pair is written in this form: (x coordinate, y coordinate) |
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Origin
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The point of intersection of the x-axis and y-axis in a
coordinate system. |
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Outlier
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A value that lies far from the center of a distribution.
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Pie Graph (Circle Graph)
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A graph used to compare parts of a whole. The circle represents the whole and is separated into parts of the whole.
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Population
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The entire group of items or individuals from which the samples under consideration are taken.
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Quadrants
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The 4 regions in a coordinate plane separated by a x-axis and y-axis.
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Range
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The difference between the greatest number and the least number in a set of data.
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Sample
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A randomly selected group that is used to represent a whole population.
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Scale
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The set of all possible values of a given measurement, including the least and greatest numbers in the set, separated by the intervals used.
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Scatter plot
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A graph of two related properties on the XY axis
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Stem & Leaf Plot
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A system used to condense a set of data where the greatest place value of the data forms the stem and the next greatest place value forms the leaves.
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Survey
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A question or set of questions designed to collect data about a specific group of people.
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Table
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A tool for organizing information in rows and columns.
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X-Axis
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The horizontal line of the 2 perpendicular number lines in a coordinate plane.
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X-Coordinate
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The first number of a ordered pair.
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Y-Axis
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The vertical line of the two perpendicular number lines in a coordinate plane.
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Y-Coordinate
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The second number of an ordered pair.
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