Texas Instruments -84 Plus, Manual Book

Page: 617 / 696

Appendix A: Functions and Instructions 614
tpdf(
x
,
df
) Computes the probability
density function (pdf) for
the Student-
t
distribution at
a specified x value with
specified degrees of
freedom
df .
y =
DISTR
5:tpdf(
Trace Displays the graph and
enters
TRACE mode.
r
T-Test
m
0
[ ,
listname
,
freqlist
,
alternative
,
drawflag ]
(Data list input)
Performs a
t
test with
frequency freqlist .
alternative
=
L
1 is < ;
alternative
= 0 is
ƒ
;
alternative
= 1 is > .
drawflag = 1 draws results;
drawflag
= 0 calculates
results.
†
…
TESTS
2:T-Test
T-Test
m
0
,
v
,
Sx
,
n
[
,
alternative
,
drawflag
]
(Summary stats input)
Performs a
t
test with
frequency freqlist .
alternative
=
L
1 is < ;
alternative
= 0 is
ă
;
alternative
= 1 is >.
drawflag = 1 draws results;
drawflag
= 0 calculates
results.
†
…
TESTS
2:T-Test
tvm_FV [ (
Ú
,
æ
,
PV
,
PMT
,
P/Y
,
C/Y
) ]
Computes the future value.
Œ
1:Finance
CALC
6:tvm_FV
Function or
Instruction/Arguments
Result
Key or
Keys/Menu or
Screen/Item