Texas Instruments TI-34 II Explorer Plus User Manual

© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-34 Û: A Guide for Teachers
82
Probability
11
Keys
These numbered paragraphs provide
explanations for the corresponding numbered
keys on the illustration below.
1.
H
displays the following menu of
functions:
nPr
Calculates the number of
possible permutations.
nCr
Calculates the number of
possible combinations.
!
Calculates the factorial.
RAND
Generates a random
10-digit real number
between 0 and 1.
RANDI
Generates a random
integer between 2 numbers
that you specify.
Notes
• The examples on the transparency
masters assume all default settings.
• A
combination is an arrangement of
objects in which the order is not
important, as in a hand of cards.
• A
permutation is an arrangement of
objects in which the order is important,
as in a race.
• A
factorial is the product of all the
positive integers from 1 to n , where n is a
positive whole number  69.
• To control a sequence of random
numbers, you can store (
L
) an
integer to
RAND
just as you would store
values to memory variables. The seed
value changes randomly every time a
random number is generated.
• For
RANDI
, use a comma to separate the
two numbers that you specify.
1

Texas Instruments TI-34 II Explorer Plus Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Blue
Digits	11 digits
Display number of lines	2 lines