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Math 494 Terms

Teacher: Ann Shedden
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Across
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Frequency Distribution with rectangular bars
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Most frequent data point
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Median of the upper half of the data
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Measure of spread that is the difference between the greatest and least values
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Measure of spread that is the average of the distance of all data points from the mean
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Vertical values indicating how a set will be grouped
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The difference between the Upper Quartile and Lower Quartile in a data set
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P(E) = 1; probability is 100%
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Horizontal values in each group determined by the stem
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Measure of spread found by taking the average of the squared deviations
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They contain the upper 25% of the data and the lower 25% of the data compared to the median in a data set
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A portion of a population being surveyed
Down
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data point that is outside the normal range. In a Box and Whisker plot, they are greater 1.5xIQR + UQ and less than 1.5xIQR less than LQ
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Measure of central tendency found by dividing the sum of the data values by the number of values
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Measure of central tendency-the middle value in a ranked set of data
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Ranking of a data point in relation to the percent of points in the set less than or equal to that value
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Representation of data using sectors of a circle to show frequency
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In a box and Whisker plot this contains the middle half of the data.