While descriptive statistics help us describe and summarize the characteristics of data, inferential statistics help us make inferences or estimates about the population and come to conclusions about the population based on the sample data. This topic covers the basics of inferential statistics, all kinds of hypotheses tests and their confidence intervals, design of experiments and statistical power and errors. It also includes point estimation techniques, limit theorems, sampling distributions, approximations and bounds. Correlation, regression and association are also covered under inferential statistics to infer relationships between variables.