Sharp EL-9900

179
Chapter 10: Statistics & Regression Calculations
05 cdfT( cdfT( lower limit, upper limit, degree of freedom )
Finds the T distribution probability within the specified range of x
for the T distribution with n degrees of freedom. A list cannot be
used.
Limitations:
Degree of freedom ≤ 670
• Degrees of freedom is a positive real number.
Example
Find the probability of range X =
0.5 to 3.2 for T distribution with
9 degrees of freedom.
06 pdfχ
2
( pdfχ
2
( value, degree of freedom )
Finds the probability density of a specified value x for the χ
2
distribution with n degrees of freedom. A list cannot be used.
Limitations:
Degree of freedom ≤ 141
• Degree of freedom is a positive real number.
Example
Find the probability density of χ
2
distribution with 15 degrees of
freedom when x = 6.5.
07 cdfχ
2
( cdfχ
2
( lower limit, upper limit, degree of freedom )
Finds the χ
2
distribution probability of a specified range of x for
the χ
2
distribution with n degrees of freedom. A list cannot be
used.
• Degree of freedom is a positive real number.
Example
Find the probability of range x =
3 to 15 for the χ
2
distribution
with 10 degrees of freedom.