Math Prb (Probability) Operations - Texas Instruments TI-83 Manual Book

MATH PRB (Probability) Operations

MATH PRB Menu
rand
2-20 Math, Angle, and Test Operations
To display the
MATH PRB
MATH NUM CPX PRB
1: rand
2: nPr
3: nCr
4: !
5: randInt(
6: randNorm(
7: randBin(
(random number) generates and returns one or more
rand
random numbers > 0 and < 1. To generate a list of random-
numbers, specify an integer > 1 for numtrials (number of
trials). The default for numtrials is 1.
[ numtrials ]
rand ( )
Tip: To generate random numbers beyond the range of 0 to 1, you
rand
can include in an expression. For example,
random number > 0 and < 5.
With each execution, the TI-83 generates the same
rand
random-number sequence for a given seed value. The TI-83
factory-set seed value for
random-number sequence, store any nonzero seed value to
. To restore the factory-set seed value, store
rand
or reset the defaults (Chapter 18).
Note: The seed value also affects
randBin(
instructions (page 2.22).
menu, press  |.
Random-number generator
Number of permutations
Number of combinations
Factorial
Random-integer generator
Random # from Normal distribution
Random # from Binomial distribution
is . To generate a different
rand 0
randInt( , randNorm(
randä5
generates a
to
0 rand
, and