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Math 494 Terms

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