Tpdf; Tcdf - Texas Instruments TI-83 Manual Book

tpdf(

computes the probability density function (pdf) for the Student-
tpdf(
distribution at a specified
plot the Student-
density function (pdf) is:
[( df
( )
f x
( df /
tpdf( x , df )

tcdf(

computes the Student-
tcdf(
and
upperbound
> 0.
TI-83 Plus Inferential Statistics and Distributions
value.
x
distribution, paste
t
1 / ) ] 2 1 ( x 2 / df
) 2
Note: For this example,
Xmin = L4.5
Xmax = 4.5
Ymin = 0
Ymax = .4
t
for the specified
(degrees of freedom) must be >0. To
df
to the
tpdf(
( df ) 1 2 /
)
df
distribution probability between
(degrees of freedom), which must be
df
editor. The probability
Y=
lowerbound
t
427