Kenyatta University Course Notes School of Humanities & Social Sciences Department of Sociology, Gender & Development Studies Course Code: ACU 201 Course Title: Introduction to Statistics in Social Sciences COURSE CONTENT - Statistics: definition, sources and methods of data collection - Variables: definition and classification and scales/levels of measurement. - Data processing: arrays and frequency distribution. - Graphical presentation: stem-and-leaf/box-plots, histograms, cumulative frequency curves (Ogive), bar graphs, and pie-charts. - Measures of central tendency: mean, mode, median, quartiles. - Measures dispersion: range, inter-quartile range, and standard deviation. - Measures of skewness and kurtosis. - Measures of relationship: Pearson and Spearman correlation coefficients. - Probability: definition and approaches