Introduction to the topic is followed by explanation of discrete data, continuous data, raw data and grouped data. Mean, mode and median are explained and compared with a range of examples. A selection of statistical diagrams is included and followed by different measures of dispersion. Standard deviation is explained and applied to construction scenarios. A brief discussion on probability is followed by binomial distribution, Poisson distribution and normal distribution. A test is explained to test if a particular data is normally distributed. An end of chapter exercise is included for the readers to apply their learning for solving the questions independently.