Chapter 13: Inferential Statistics and Distributions
376
tpdf(
tpdf(
tpdf(
tpdf(
tpdf(
computes the probability density function (
) for the Student-
t
distribution at a
specified
x
value.
df
(degrees of freedom) must be > 0. To plot the Student-
t
distribution,
paste
tpdf(
to the Y= editor. The probability density function (
)
is:
tpdf(
x
,
df
)
tcdf(
tcdf(
tcdf(
tcdf(
tcdf(
computes the Student-
t
distribution probability between
lowerbound
and
upperbound
for
the specified
df
(degrees of freedom), which must be > 0.
tcdf(
lowerbound
,
upperbound
,
df
)
Note:
For this example,
Xmin =
L
4.5
Xmax = 4.5
Ymin = 0
Ymax = .4
f x
( )
Γ
df
1
+
(
)
/2
[
]
Γ
df
2
⁄
(
)
---------------------------------
=
1
x
2
/
df
+
(
)
df
1
+
(
)
/2
–
π
df
-------------------------------------------------
Содержание -84 Plus
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Страница 248: ...Chapter 10 Matrices 245 row value matrix rowA rowB...
Страница 332: ...Chapter 12 Statistics 329...
Страница 354: ...Chapter 13 Inferential Statistics and Distributions 351 Ha p1 p2 p1 p2 Input Calculated results Drawn results...
Страница 413: ...Chapter 14 Applications 410...
Страница 427: ...Chapter 15 CATALOG Strings Hyperbolic Functions 424 sinh 1 value cosh 1 value sinh 1 value...
Страница 496: ...Chapter 17 Activities 493 If C A and D B Stop Goto Z Quit if guesses are correct...
Страница 516: ...Chapter 17 Activities 513 At which monthly payment will the principal allocation surpass the interest allocation...
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