Pack 7 / Pre-pandas Data Thinking
counts, averages, aggregation
Lesson pack7-3
counts, averages, aggregation
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Hook
Raw data is messy. Summaries help you see the bigger picture.
A count tells you how many items matched.
A total adds values together.
An average is total divided by how many values there are.
Mini Challenge
Count how many scores are 85 or higher, then print the final count.
Full lesson mode with normal detail.
Code Lab
Try it now
Output updates below
Output
87.0
Run the code, tweak it, then beat the challenge.