Frequency curves and correlation

1. Introductory 2. Frequency distributions 3. Method of moments 4. Pearson's system of frequency-curves 5. Calculation 6. Comparison of various systems of curves 7. Correlation 8. Theoretical distributions. Spurious correlation 9. Correlation of characters not quantitatively measurable 10. Standard errors 11. The test of goodness of fit 12. The correlation ration - contingency 13. Partial correlation Appendices Index Folding table of curves.