Chapter 13: Inferential Statistics and Distributions 378
c2cdf(
cdf(cdf(
cdf(
c2cdf( computes the c2 (chi-square) distribution probability between lowerbound and
upperbound for the specified df (degrees of freedom), which must be an integer > 0.
c2cdf(lowerbound,upperbound,df)
Fpdf(
Fpdf(Fpdf(
Fpdf(
Üpdf( computes the probability density function (pdf) for the Ü distribution at a specified x
value. numerator df (degrees of freedom) and denominator df must be integers > 0. To plot
the Ü distribution, paste Üpdf( to the Y= editor. The probability density function (pdf) is:
where n = numerator degrees of freedom
d = denominator degrees of freedom
fx() Γnd+()/2[]
Γn/2()Γd/2()
----------------------------------n
d
---
⎝⎠
⎛⎞
n/2xn/2 1–1nx/d+()
nd+()/2–x0≥,=