An introduction to general statistical principles, useful to all, regardless of their fields of specialisation, with contents under the following headings: Variables and graphs. Frequency distributions. The mean, median, mode and other measures of central tendency. The standard deviation and other measures of dispersion. Moments, skewness, and kurtosis. Elementary probability theory. The binomial, normal end poisson distributions. Elementary sampling theory. Statistical estimation theory. Statistical decision theory. Small sampling theory. The chi-square test. Curve fitting and the method of least squares. Correlation theory. Multiple and partial correlation. Analysis of variance. Non-parametric tests. Analysis of time series. Index numbers. Answers to supplementary problems. Appendices: 1, Ordinates (y) of the standard normal curve at z. 2) Areas under the standard normal curve from O to z. 3) Percentile values (tp) for student's with the degrees of freedom. 5) 95th percentile values for the F distribution. 6) 99th percentile values for the F distribution. 7) Four-place common logarithms. 8) Values of e -2.9) Random numbers. C
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