CK-12-Basic Probability and Statistics Concepts - A Full Course

2.6. Combination Problems http://www.ck12.org

You will see several options, withnCrbeing the third. Press

3

, and then enter thervalue. Finally, press

ENTER

to calculate the answer.

Example A

Compute 10 C 6 using your TI calculator.

To find the answer, enter the following into your TI calculator:

1 0 MATH I I I (PRB) 3 (nCr) 6 ENTER

After pressing

ENTER

, you should see the following on your calculator’s screen:

Therefore,

10 C 6 =^210

.

Example B

Jim has 4 paid vacation days that he has to use before the end of the year. If there are 26 business days left in the
year, in how many ways can Jim use his paid vacation days? Compute the answer using your TI calculator.

To find the answer, enter the following into your TI calculator:

2 6 MATH I I I (PRB) 3 (nCr) 4 ENTER

After pressing

ENTER

, you should see the following on your calculator’s screen: