"To understand God's thoughts we must study statistics, for these are the measure of his purpose."
– Florence Nightingale
– Florence Nightingale
Instead of trusting gut feeling and guesses, data scientists trust data. Descriptive statistics are wonderful for introducing data and scavenging for insights. Statistical hypothesis testing is a great way to check how likely some behavior displayed by data is due to an actual trend or randomness. Although some key statistical concepts are recovered during the chapter, readers will greatly benefit from prior knowledge on probabilities and distributions. This chapter will discuss how to use R to draw descriptive...