Includes index.

Data collection and its graphical presentation -- Descriptive statis tics Regression and correlation: introduction -- Probability -- Introdu ction to probability distributions -- Sampling distributions for means and proportions -- Confidence intervals for means and proportions -- Te sts of hypothesis for means and proportions -- Inference from small sam ples. Confidence intervals and tests of hypothesis -- Analysis of varia nce -- Chi-squared tests -- Regression analysis -- Appendix A: technica lities and conventions for defining class intervals, mid-interval, widt hs, limits, boundaries -- Appendix B: formulae for calculating the quar tiles for group data -- Appendix C: outline of derivation of formulae ( 3.2) and (3.3) for the slope and intercept of the least-squares line, Y =a+bX -- Appendix D: brief review of the mathematics for the binomial - - Appendix E: the number e -- Appendix F: calculation of mean and varia nce of proportions by expected values -- Appendix G: confidence interva ls for means and proportions -- Appendix H: degrees of freedom -- Appen dix I: notes on summations and double summations -- Appendix J: express ing the estimates of variance as sums of squares divided by degrees of freedom in their simplest form -- Appendix K: sums of squares for the o ne-way ANOVA -- Appendix L: fitted values and residuals -- Appendix M: sums of squares identity for two-way ANOVA.