HP Prime Graphing Wireless Calculator - Manual (Page 118)

114 Functions and commands
T Inverse cumulative Student's t distribution function. Returns the
value x such that the Student's-t lower-tail probability of x, with
n degrees of freedom, is p.
STUDENT_ICDF(n,p)
Example:
STUDENT_ICDF ( 3,0.0246659214814 ) returns –3.2.
Inverse cumulative distribution function. Returns the value x
such that the lower-tail probability of x, with n degrees of
freedom, is p.
CHISQUARE_ICDF(n,p)
Example:
CHISQUARE_ICDF(2, 0.957147873133)
returns
6.3.
F Inverse cumulative Fisher distribution function. Returns the
value x such that the Fisher lower-tail probability of x, with
numerator n and denominator d degrees of freedom, is p.
FISHER_ICDF(n,d,p)
Example:
FISHER_ICDF(5,5,0.76748868087)
returns
2.
Binomial Inverse cumulative binomial distribution function. Returns the
number of successes, k, out of n trials, each with a probability
of p, such that the probability of k or fewer successes is q.
BINOMIAL_ICDF(n,p,q)
Example:
BINOMIAL_ICDF(20,0.5,0.6)
returns
11.
Poisson Inverse cumulative Poisson distribution function. Returns the
value x such that the probability of x or fewer occurrences of
an event, with expected (or mean) occurrences of the event
in the interval, is p.
POISSON_ICDF( ,p)
Example:
POISSON_ICDF(4,0.238103305554)
returns
3.
List
These functions work on data in a list. For more information,
see the Lists chapter of the Prime Calculator User Guide.
χ
2
χ
2
χ
2
μ
μ