Explore a comprehensive series of R tutorials covering a wide range of statistical and data visualization techniques. Learn to perform medical statistics in under 90 minutes, apply the Hotelling T-squared test, and utilize the WDI library for World Bank data analysis. Dive into deep learning with Keras, understand convolutional neural networks, and create various charts using Plotly. Master categorical variable tests, including G tests and exact tests of goodness of fit. Discover how to extract COVID-19 information from JHU data and calculate relative risk and efficacy using the AstraZeneca vaccine trial as an example. Enhance your R programming skills and data analysis capabilities through these practical and diverse tutorials.