HP Prime Graphing NW280AAABA manual List

TInverse 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.
χ2	Inverse cumulative χ2 distribution function. Returns the value x

such that the χ2 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.

FInverse 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 μ expected (or mean) occurrences of the event in the interval, is p.

POISSON_ICDF( μ ,p)

Example:

POISSON_ICDF(4,0.238103305554) returns 3.

List

These functions work on data in a list. They are explained in detail in chapter 24, “Lists”, beginning on page 451.

322 Functions and commands