17. Practice Exercises with Answer Hints
17.5 Charts and Story
Exercise I. Horizontal bar of Delivered GMV by city; save PNG.
Hint I
groupby sum → sort_values → plot(kind="barh") → savefig.
Exercise J. Six-line manager story for fictional Diwali spike (no ML).
Hint J
Follow Chapter 15 template: headline, two evidences, caveat, ask.
Ravindra Bagale's Tip
Khup students hints baghun code copy kartat aani money memory madhe nahi rahtat. Pehle 10 minutes without hint; mag hint. Interview madhe hint naste. Dhyan rakho!
Practice task
Pick any three exercises, time yourself (25 minutes total), and paste outputs into your notebook with a short “what I struggled with” note.
Thodkyaat sangaycha tar (quick recap)
- Filter → groupby → merge → clean → dates → melt → chart → story
- Hints are scaffolds, not answer keys
Samajla ka? Aata pudhe jaauya interview questions and answers.