Big Idea 2 · Topic 2.4 · Exercise 1
Extraction Process Identifier
25 minutes
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Q1 · 3 points on the handout
After the bar chart shows 9th grade under-participating, the principal asks: 'Is that true for after-school clubs specifically?' Name the property of insight-seeking this illustrates, and list the steps of the next pass.
Q2 · 3 points on the handout
Signup forms list the same club as 'Robotics,' 'robotics club,' and 'FIRST Robotics.' Explain what filtering and cleaning contribute here, and what a per-club total computed WITHOUT cleaning would get wrong.
Q3 · 2 points on the handout
ENRICHMENT: The four extraction processes look like a menu, but real analyses chain them into a pipeline whose ORDER matters. Give one concrete example from this exercise where swapping two steps changes the answer.
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