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Calculator Activity
PROBABILITY
OBJECTIVE:
To get a basic understanding factorials, combinations, and permutations.
A combination is used when order does not matter. A permutation is used
when order does matter.
1.
Find
!
10
.
STEP 1: Enter
!
10
by pressing
.
STEP 2: Calculate by pressing
.
2.
How many different ways can you choose 1 from a group of 6?
STEP 1: Enter the larger number, 6, by pressing
.
STEP 2: Enter the combination symbol by pressing
.
STEP 3: Enter the smaller n
umber, 1, by pressing
.
STEP 4: Calculate the answer by pressing
.
3.
Find the number of permutations of 4 things taken 2 at a time.
STEP 1: Enter the larger number, 4, by pressing
.
STEP 2: Enter the permutation symbol by pressing
.
STEP 3: Ent
er the smaller number, 2, by pressing
.
STEP 4: Calculate the answer by pressing
.
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