Permutations, Combinations, Factorials, and Random Numbers
Objective To investigate the Probability functions on the calculator
Probability options are listed under the
key. Use the
right arrow to move to the PRB (probability) menu.
On this screen you will find:
Permutation
Combination
Factorial
Random Integers
2: nPr
3: nCr
4: !
5: randInt(
To return to the HOME
screen, press
Copyright © by William H. Sadlier, Inc. Permission to duplicate classroom quantities granted to users of Fundamentals of Algebra.
Be sure to enter a numerical value before accessing the
Find 7 P5 .
From the HOME screen, press
.
key for “nPr”, “nCr”, and “!”.
Press
to
clear the screen.
Solution: 2,520
Find 9 C5 .
From the HOME screen, press
Solution: 126
Find 8!.
From the HOME screen, press
Solution: 40, 320
Generate 5 random numbers from 1 to 20.
RandInt(least, greatest, count)
From the HOME screen, press
Solution: 16, 20, 5, 8, 1 (Results will vary.)
Evaluate.
1. 6P4 2. 3P2 3. 10C3 4. 20C15 5. 10! 6. Generate 3 random integers from 1 to 12.
Course I, Chapter 12