Texas Instruments TI-80 User Manual - Page 145
width of each bar, beginning at, histogram plots one-variable data.
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Box Plot ¾ ¾ (box plot) plots one-variable data. The whiskers on the plot extend from the minimum data point in the set (MINX) to the first quartile (Q1) and from the third quartile (Q3) to the maximum point (MAXX). The box is defined by Q1, the median (MED), and Q3 (page 9-17). Box plots are plotted with respect to XMIN and XMAX, but ignore YMIN and YMAX. When two box plots are plotted, the first plots at the top of the screen and the second plots in the middle. When three are plotted, the first plots at the top, the second in the middle, and the third at the bottom. Histogram ¿ ¿ (histogram) plots one-variable data. XSCL determines the width of each bar, beginning at XMIN. (XMAX - XMIN)àXSCL must be 31. A value occurring on the edge of a bar is counted in the bar to the right. Frequencies in Stat Plots The frequency list specified for a statistical plot works just like the frequency lists specified for other statistical calculations (pages 9-14 through 9-16). If you want to exclude an outlying data point from a plot, enter a zero for that value in the frequency list to prevent having to change the data lists. Statistics 9-19