Calculator User Manual

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 1003MATH.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 1003MATH.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
,
#ofTrialsä
)
(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
,
#ofTrialsä
)
(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
,
#ofSimulationsä
)
(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.