HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Strona 409

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STUDENT_CDF(3,–3.2) returns 0.0246659214814.
X
2
Cumulative X
2
distribution function. Returns the lower-tail probability of the X
2
probability density function
for the value X, given n degrees of freedom.
CHISQUARE_CDF(n,k)
Example:
CHISQUARE_CDF(2, 6.3) returns 0.957147873133.
F
Cumulative Fisher distribution function. Returns the lower-tail probability of the Fisher probability density
function for the value x, given numerator n and denominator d degrees of freedom.
FISHER_CDF(n,d,x)
Example:
FISHER_CDF(5,5,2) returns 0.76748868087.
Binomial
Cumulative binomial distribution function. Returns the probability of k or fewer successes out of n trials, with
a probability of success, p for each trial. Note that n and k are integers with k≤n.
BINOMIAL_CDF(n,p,k)
Example: Suppose you want to know the probability that during 20 tosses of a fair coin you will get either 0, 1,
2, 3, 4, 5, or 6 heads.
BINOMIAL_CDF(20,0.5,6) returns 0.05765914917.
Geometric
Cumulative geometric distribution function. With two values (p and x), returns the lower-tail probability of the
geometric probability density function for the value x, given probability p. With three values (p, x
1
, and x
2
),
returns the area under the geometric probability density function dened by the probability p, between x
1
and x
2
.
GEOMETRIC_CDF(p, x)
GEOMETRIC_CDF(p, x
1
, x
2
)
Examples:
GEOMETRIC_CDF (0.3, 4) returns 0.7599.
GEOMETRIC_CDF (0.5, 1, 3) returns 0.375.
Poisson
Cumulative Poisson distribution function. Returns the probability x or fewer occurrences of an event in a given
time interval, given expected occurrences.
POISSON_CDF( ,x)
Example:
Math menu 361
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