11
Ti30xa School Edition.doc TI-30Xa SOLAR School Edition
Bob Fedorisko Revised: 05/16/03 9:26 AM Printed:
05/16/03 9:32 AM Page 11 of 23
Probability
A combination is an arrangement of objects in which
order is not important, as in a hand of cards. " i
calculates the number of possible combinations of n
items taken r at a time.
Calculate the number of 5-card poker hands that can
be dealt from a deck of 52 cards.
52 " i 5 J 2598960.
A permutation is an arrangement of objects in which
the order is important, as in a race. " j
calculates the number of possible permutations of n
items taken r at a time.
Calculate the number of possible permutations for the
1st-, 2nd-, and 3rd-place finishers (no ties) in an 8-
horse race.
8 " j 3 J 336.
A factorial is the product of the positive integers from 1
to n. (n must be a positive whole number 69).
Using the digits 1, 3, 7, and 9 only one time each, how
many 4-digit numbers can you form?
4 " v 24.
To Next Page
Loading...
