Distribution Shading - Texas Instruments TI-83 Manual Book

Distribution Shading

DISTR DRAW
Menu
ShadeNorm(
To display the
DISTR DRAW
instructions draw various types of density
DISTR DRAW
functions, shade the area specified by lowerbound and
upperbound, and display the computed area value.
To clear the drawings, select
menu (Chapter 8).
Note: Before you execute a
the window variables so that the desired distribution fits the screen.
DISTR DRAW
Shades normal distribution.
1: ShadeNorm(
Shades Student-t distribution.
2:Shade_t(
2
Shades c
3:Shadec (
Shades Û distribution.
4:ShadeÛ(
Note: L1å99 and 1å99 specify infinity. If you want to view the area left
of upperbound, for example, specify lowerbound = L1å99.
draws the normal density function specified
ShadeNorm(
by mean m and standard deviation s and shades the area
between lowerbound and upperbound. The defaults are
m =0 and s =1.
lowerbound
ShadeNorm(
Inferential Statistics and Distributions 13-35
menu, press y [
from the
1:ClrDraw
DISTR DRAW
instruction, you must set
2
distribution.
m s]
upperbound[
, , ,
Note: For this example,
Xmin = 55
Xmax = 72
Ymin = L.05
Ymax = .2
] ~.
DISTR
DRAW
)