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TI-83 Plus Tables and Reference Information 657
Function or Instruction/
Arguments Result
Key or Keys/
Menu or Screen/Item
c
2
cdf(
lowerbound
,
upperbound
,
df
)
Computes the
c
2
distribution
probability between
lowerbound
and
u
pp
erbound
for the specified degrees
of freedom
df
.
y
=
DISTR
7:
c
2
cdf(
c
2
pdf(
x
,
df
)
Computes the probability density
function (pdf) for the
c
2
distribution at
a specified
x
value for the specified
degrees of freedom
df
.
y
=
DISTR
6:
c
2
pdf(
c
2
.
Test(
observedmatrix
,
ex
p
ectedmatrix
[
,
drawflag
]
)
Performs a chi-square test.
draw
f
la
g
=
1
draws results;
drawflag
=
0
calculates results.
†
…
TESTS
C:
c
2-
Test(
Circle(
X
,
Y
,
radius
)
Draws a circle with center (
X
,
Y
) and
radius
.
y
<
DRAW
9:Circle(
Clear Entries
Clears the contents of the Last Entry
storage area.
y
L
MEMORY
3:Clear Entries
ClrAllLists
Sets to
0
the dimension of all lists in
memory.
y
L
MEMORY
4:ClrAllLists
ClrDraw
Clears all drawn elements from a
graph or drawing.
y
<
DRAW
1:ClrDraw
ClrHome
Clears the home screen. †
I/O
8:ClrHome