Statistics

This document covers the work done for the whole second semester. It also contains comprehensive examples so that the work is easier to understand. It will help in preparation of the exam.

This document contains in depth lecture notes for Chapter 1 of Quantitative Statistical Techniques as well as Study Unit 1.1 of STK 120, STK 121, STK 161, STK 162. The lecture notes have notes (and examples) of: * Study Unit Theme 1.1.1 Mathematical Operations and Rules * Study Unit Theme 1.1.2 Graphs and Functions * Study Unit Theme 1.1.3 Linear Functions * Study Unit Theme 1.1.4 Linear Inequalities and systems thereof * Study Unit Theme 1.1.5 Quadratic Functions (Parabola) * Study Unit T...

This document contains a summary from Section A: Swanepoel A, Vivier FL, Millard SM and Ehlers R Quantitative Statistical Techniques (Van Schaiks, 3rd Edition, 2009) and Section B: Anderson DR, Sweeney DJ and Williams TA Modern Business Statistics with Microsoft Office Excel (Cengage Learning, 5th Edition 2015 or 6th Edition 2018)

STK 110 - Chapter 3 - Descriptive Statistics: Numerical Measures - Mean - Median - Mode - Standard Deviation - Range - Minimum - Maximum - Percentiles - Variance - Coefficient of Variation - Z-scores - Outliers - Five-number Summary - Box-plot - Covariance - Correlation Coefficient - Weighted Mean - Working with grouped data - Empirical Rule

STK 110 - Chapter 2 - Descriptive Statistics - Frequency Distribution - Relative Frequency - Summarising Data - Class Width - Class Limits - Midpoints - Histograms - Skewness of Data - Cumulative Frequencies - Ogive - Stem and Leaf Display

STK 110 - Chapter 1 - Data & Statistics - Elements - Variables - Observations - Cross-sectional Data - Time series Data - Descriptive Statistics - Inferential Statistics - Quantitative Data - Qualitative Data