Roadmap
Day 13 · Statistics 45 min 30 XP
📏Mean, median, mode & spread
One number can describe a whole column, but only if you pick the right one. The mean, median and mode are three ways to say typical, and spread says how much the values vary.
What you'll learn
- Calculate mean, median and mode
- Explain why an outlier moves the mean more than the median
- Describe spread with range and standard deviation
A peek inside
Three kinds of typical
The rest of Day 13 is a Pro lesson
You're on the free Explorer plan — you get the intro and the video. Go Pro to open the full guided lesson (and all 30 days).
- 3 deep-dive lessons
- A copy-paste worked example
- 3 hands-on practice tasks
- Studio task: Typical or misleading?
- 3-question quiz, up to 45 XP
- 4 quick-glance glossary cards
- 30 XP + streak tracking
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