Texas Instruments TI-86 - Manual (Page 62)

50
Chapter 3: Math, Calculus, and Test Operations
03MATH.DOC TI-86, Chap 3, US English Bob Fedorisko Revised: 02/13/01 2:19 PM Printed: 02/13/01 3:00 PM Page 50 of 10 03MATH.DOC TI-86, Chap 3, US English Bob Fedorisko Revised: 02/13/01 2:19 PM Printed: 02/13/01 3:00 PM Page 50 of 10 03MATH.DOC TI-86, Chap 3, US English Bob Fedorisko Revised: 02/13/01 2:19 PM Printed: 02/13/01 3:00 PM Page 50 of 10
The MATH PROB (Probability) Menu - Π'
NUM PROB ANGLE HYP MISC
! nPr nCr rand randIn 4 randN randBi
value ! Returns the factorial of a real value
items nPr number Returns the number of permutations of items ( n ) taken number ( r ) at a
time
items nCr number Returns the number of combinations of items ( n ) taken number ( r ) at a
time
rand Returns a random number > 0 and < 1; to control a random number
sequence, first store an integer seed value to
rand (such as 0 ¶ rand )
randInt( lower , upper
ã
, #ofTrials
ä
)
(random integer) Returns a random integer bound by the specified
integers, lower
 integer  upper; to return a list of random integers,
specify an integer > 1 for #ofTrials
randNorm( mean ,
stdDeviation
ã
, #ofTrials
ä
)
(random normal) Returns a random real number from a normal
distribution specified by mean and stdDeviation; to return a list of
random numbers, specify an integer > 1 for #ofTrials
randBin( #ofTrials ,
probabilityOfSuccess
ã
, #ofSimulations
ä
)
(random binomial) Returns a random real number from a binomial
distribution, where #ofTrials
‚ 1 and 0  probabilityOfSuccess  1; to
return a list of random numbers, specify an integer > 1 for
#ofSimulations
! (factorial) is valid for non-
integers.
randInt , randNorm, and
randBin are abbreviated in
the MATH PROB menu.