Loading [MathJax]/jax/output/HTML-CSS/jax.js
© 2025 Shmoop University, Inc. All rights reserved.
 

Math Shack

< Pick a Different Problem
I'm Feeling Lucky
View Your Progress
0

Factorials and Probability

Stat-prob

Answer questions correctly to move the progress bar forward. Once the progress bar is complete, you've mastered the topic.
Your browser does not support HTML5 Canvas. To get the most out of Math Shack you will need to upgrade to a more modern browser.

If you randomly rearranged 4 samples of petroleum in a row, what are the chances that they will be ordered in ascending order by octane rating?

Submit
Where do I start?

Calculator

You Will Earn

12

Shmoints When You Master This Topic!

You've already mastered this topic. You can't earn more Shmoints for the same topic, but feel free to keep practicing.

Got Math Shack feedback? Share it with us!

Hey Teachers!

Robeefalo says...

Make homework fun.

Send a link to Math Shack. Your students will thank you.

Give Extra Credit.

For earning 100 Shmoints. The sky’s the limit.

Get Support.

If your school is using Common Core, we are all set up to support you. Click here to learn more.