HP Prime Graphing Wireless Calculator Instrukcja Użytkownika Strona 407

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Normal
Random normal. Generates a random number from a normal distribution.
RANDNORM(μ,σ)
Example:
RANDNORM(0,1) returns a random number from the standard Normal distribution.
Seed
Sets the seed value on which the random functions operate. By specifying the same seed value on two or
more calculators, you ensure that the same random numbers appear on each calculator when the random
functions are executed.
RANDSEED(value)
Probability – Density
Normal
Normal probability density function. Computes the probability density at value x, given the mean, μ, and
standard deviation, σ, of a normal distribution. If only one argument is supplied, it is taken as x, and the
assumption is that μ=0 and σ=1.
NORMALD([μ,σ,]x)
Example:
NORMALD(0.5) and NORMALD(0,1,0.5) both return 0.352065326764.
T
Student’s t probability density function. Computes the probability density of the Student's t-distribution at x,
given n degrees of freedom.
STUDENT(n,x)
Example:
STUDENT(3,5.2) returns 0.00366574413491.
χ
2
χ
2
probability density function. Computes the probability density of the x
2
distribution at x, given n degrees of
freedom.
CHISQUARE(n,x)
Example:
CHISQUARE(2,3.2) returns 0.100948258997.
F
Fisher (or Fisher–Snedecor) probability density function. Computes the probability density at the value x,
given numerator n and denominator d degrees of freedom.
FISHER(n,d,x)
Example:
Math menu 359
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