Timed test: cleaning data
Clean a messy sign-up export against a 10-minute clock, with Remove duplicates, TRIM, PROPER, splitting a column and fixing numbers stored as text.
In this lesson
- Extra spaces:
=TRIM(D2). Capitals:=PROPER(E2)(also UPPER, LOWER). - Numbers stored as text:
=VALUE(F2)in a helper column, then add up the helper column. - Clean in this order: duplicates first, then formulas.
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Why your formula broke when you copied it
Lock a cell with $ so a formula keeps working when you copy it down.
Beginner · 7 min · Free, with no sign-up
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- The Roadmap, Skills and all seven paths.
- A cheat sheet for every lesson you finish.
- Skill
- Interview prep
- Stage
- Analyst
Where it sits in Interview prep
- The 10 tasks employers test25 min
- Timed test: formulas12 min
- Timed test: lookups10 min
- Timed test: pivot tables12 min
- Timed test: cleaning dataThis lesson12 min
- Mock analyst take-home task15 min
The steps
7 steps: 2 explanations, 5 Your turn.
Try a free lesson first
Why your formula broke when you copied it
Lock a cell with $ so a formula keeps working when you copy it down.
Beginner · 7 min · Free, with no sign-up
Do the free lesson on your computer.
Send yourself the link and open it on a laptop or desktop.
On your computer, go tolearnford.com/go/39MP