1. Permutations v. Combinations
-Order of people/objects matters -Order of people/objects does not
-“Hot Words” arrangements / orders / matter
rank (1st 2nd 3rd place) Examples
Examples -people sitting in a car/vehicle
- any type of race (w/ rank) -handshakes or high fives with
- playlist / order on a shelf classmates/teammates
- student gov’t (P, VP, S, T) - any type of race (no rank, top 10 get
tshirts)
- question uses the “Hot Words”
- student senators
How do I use the calculator to help? How do I use the calculator to help?
First, type in TOTAL number of First, type in TOTAL number of
people/objects. Next, locate PRB people/objects. Next, locate PRB
button/menu, choose nPr option. button/menu, choose nCr option.
Then, type in smaller number of the Then, type in smaller number of the
group. Finally, hit the equal sign. group. Finally, hit the equal sign.