Texas Instruments TI-82 STATS Manual Book page 274

Distribution Shading
Shade_t(
2
Shadec (
ShadeÜ Ü Ü Ü (
13–36 Inferential Statistics and Distributions
(continued)
draws the density function for the Student-t
Shade_t(
distribution specified by df (degrees of freedom) and shades the
area between lowerbound and upperbound.
lowerbound
Shade_t(
2
draws the density function for the c
Shadec (
distribution specified by df (degrees of freedom) and shades the
area between lowerbound and upperbound.
2
lowerbound
Shadec (
draws the density function for the Û distribution
ShadeÜ Ü Ü Ü (
specified by numerator df (degrees of freedom) and
denominator df and shades the area between lowerbound and
upperbound.
ShadeÜ Ü Ü Ü (
lowerbound
denominator df
)
upperbound df
, , )
Note: For this example,
Xmin = L3
Xmax = 3
Ymin = L.15
Ymax = .5
upperbound df
, , )
Note: For this example,
Xmin = 0
Xmax = 35
Ymin = L.025
Ymax = .1
upperbound numerator df
, ,
Note: For this example,
Xmin = 0
Xmax = 5
Ymin = L.25
Ymax = .9
2
(chi-square)
,