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Chapter 10: Statistics & Regression Calculations
03 InvNorm( InvNorm(
probability [, mean, standard deviation]
)
Finds the value of x of a given normal distribution probability. A
list cannot be used.
* When mean (µ) and standard deviation (σ) are omitted, µ = 0
and σ = 1 are applied.
Example
Find the value of x for the
probability of 0.8 in the above
sample.
04 pdfT( pdfT(
value, degree of freedom
)
Finds the probability density of a specified value x for the T
distribution with n degrees of freedom. A list cannot be used.
Limitations:
Degree of freedom ≤ 140
• Degrees of freedom is a positive real number.
If decimal values are used for the degrees of freedom, the
calculator uses the closest integer of the given degree of
freedom.
• An error may occur when an extremely large number is entered
for degree of freedom.
Example
Find the probability density of
the T distribution with 9 degrees
of freedom when x = 2.5.
