Shipunov A. Visual statistics. Use R!

Publication details not specified, 2019. — 430 p.This book is written for those who want to learn how to analyze data. This challenge arises frequently when you need to determine a previously unknown fact. For example: does this new medicine have an effect on a patient’s symptoms? Or: Is there a difference between the public’s rating of two politicians? Or: how will the oil prices change in the next week?
You might think that you can find the answer to such a question simply by looking at the numbers. Unfortunately this is often not the case. For example, after surveying 262 people exiting a polling site, it was found that 52% voted for candidate A and 48% for candidate B.