User Manual

© 2006 TEXAS INSTRUMENTS INCORPORATED TI-30XS MultiView: A Guide For Teachers 91
Four different people are running in a
race. Use this formula to find how
many different ways they can place
1st and 2nd.
4 nPr 2
ABC D
There are 12 different permutations
for the 1st and 2nd place results of
the race.
Press Display
4 H
<2 <
AB and BA
count as 2
permutations
AB AC AD
BA BC BD
CA CB CD
DA DB DC
Permutation (nPr)
H