LEARN · EXPLAIN · REVISE
Statistical analysis of paired data
Read the idea, work independently, then explain what changed.
Each section contains concept explanations, three worked examples, ten graded exercises and teacher preparation.
8.1
Take the 15-question mixed assessment ↗Correlation of paired data
Interpret scatter patterns and compute a correlation from centered paired summaries.
8.2Linear regression and applications
Fit a least-squares line and distinguish prediction, residual and extrapolation.
8.3Contingency tables and independence tests
Compute expected counts and a chi-square statistic and state a bounded conclusion.