Discussion questions
Choose a section to work through its questions and solutions. Your progress is shared across pages. Ranges follow collection order; original source labels are kept on each question.
Section 1 · Questions 1–6
Calculate correlation from six summary values · Distinguish an income association from a causal claim · +4 more
- Question 1 · Calculate correlation from six summary values
- Question 2 · Distinguish an income association from a causal claim
- Question 3 · Fit crane profits and assess a sales target
- Question 4 · Sketch possible correlations and model monthly earnings
- Question 5 · Predict a record time without rounding away the result
- Question 6 · Compare pollution models and audit a damaged regression fragment
Section 2 · Questions 7–9
Recover a missing price index and choose the prediction direction · Compare used-car prices with reciprocal mileage · +1 more