In the beginning, God created X1,...,Xn independent and identically distributed random variables. 🥵

On the first day, He created sufficient and complete statistics. 💪

On the second day, He created Unbiased Minimum Variance Unique Estimators and Mean Squared Error. ♥️

On the third day, He created hypothesis testing. 🤤

On the fourth day, He created interval estimation. 😤

On the fifth day, He created Ordinary Least Squares and Linear regression. 🤓

On the sixth day, He created Bayes law and all the devilish principles that came thereafter. 👎

On the seventh day, God rested, because statistics is exhausting. 😴