Texas Instruments TI-84 - Manual (Page 323)

Chapter 12: Statistics 320
Histogram Histogram Histogram Histogram
Histogram (
Ò) plots one-variable data. The
Xscl window variable value determines the
width of each bar, beginning at Xmin . ZoomStat adjusts Xmin , Xmax , Ymin , and Ymax to
include all values, and also adjusts Xscl . The inequality ( Xmax N Xmin ) à Xscl  47 must be
true. A value that occurs on the edge of a bar is counted in the bar to the right.
ModBoxplot ModBoxplot ModBoxplot ModBoxplot
ModBoxplot (
Õ) (modified box plot) plots one-variable data, like the regular box plot,
except points that are 1.5 … Interquartile Range beyond the quartiles. (The Interquartile
Range is defined as the difference between the third quartile Q3 and the first quartile Q1 .)
These points are plotted individually beyond the whisker, using the Mark ( › or + or ¦) you
select. You can trace these points, which are called outliers.
The prompt for outlier points is x= , except when the outlier is the maximum point ( maxX )
or the minimum point ( minX ). When outliers exist, the end of each whisker will display x= .
When no outliers exist, minX and maxX are the prompts for the end of each whisker. Q1 ,
Med (median), and Q3 define the box.
Box plots are plotted with respect to Xmin and Xmax , but ignore Ymin and Ymax . When
two box plots are plotted, the first one plots at the top of the screen and the second plots