TI-83 Plus Inferential Statistics and Distributions 434
Distribution Shading
DISTR DRAW Menu
To display the DISTR DRAW menu, press y = ~. DISTR DRAW
instructions draw various types of density functions, shade the area
specified by lowerbound and upperbound, and display the computed area
value.
To clear the drawings, select 1:ClrDraw from the DRAW menu (Chapter 8).
Note: Before you execute a DISTR DRAW instruction, you must set the window
variables so that the desired distribution fits the screen.
DISTR DRAW
1: ShadeNorm( Shades normal distribution.
2: Shade_t( Shades Student-t distribution.
3: Shadec2(Shades c2 distribution.
4: ShadeÛ(Shades Û distribution.
Note: L1å99 and 1å99 specify infinity. If you want to view the area left of
upperbound, for example, specify lowerbound
=
L1å99.