Lemma
EasyDescribing data
OpenStax, Contemporary Mathematics §8.4 Range and Standard Deviation · Example 3 · Statistics · Describing data

Range and Standard Deviation · Example 3

You surveyed some of your friends to find out how many hours they work each week. Their responses were: 5, 20, 8, 10, 35, 12. What is the standard deviation?

~5 minWritten answer · check your work with Lemma

OpenStax, Contemporary Mathematics · §8.4 Range and Standard Deviation · Example 3

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.