Texas Instruments solar TI-36X User Manual page 35

³
n!
Compute where n=52 and r=5.
r!(n-r)!
5 2
5
5 2 5
You no doubt recognize the above formula to find the
number of possible combinations of n objects taken r at
a time without replacement. You can obtain this result
more directly by using nCr on the Probability menu.
³
How many ways can you deal 5 cards from a deck of 52
cards?
5 2
5
There are 2598960 ways to deal 5 cards from a deck of
52 cards.
33
Ti36eng1.doc TI-36X II Manual Linda Bower Revised:
01/10/03 10:47 AM Printed: 01/10/03 10:47 AM Page 33 of
48
Problem
Þ
nPr nCr !
,-/
ß
52!
,-/
&ß
52!ñ(5!è(52
2598960.
,-/
Problem
Þ
nPr nCr !
,-/
ß
52 nCr 5
2598960.
,-/