Unit 4 · Lesson 4.3 · Start1 / 12
Unit 4 · Lesson 4.3
4.3
Preparing data
The Chillai Kalan log is a mess: a day written twice, a day left blank, "lots" instead of a number, dates all jumbled. You can't chart that — yet.
Today you will
- Clean a messy log in four steps
- Mark missing data — never make it up
- Find which month was wetter
40 min On the laptop