1. 22. Normal Distribution L2 & Sample Mean Distribution L1We cleared Normal Distribution and moved on with Sample Mean Distribution. Normal Distribution can be a simple concept, but the questions are tedious and full of little details to manage. Being conscientious and systematic will save many marks here! And always remember to keep an eye out for symmetry :) Moving on to Sample Mean Distribution, we mainly considered when we needed to use Central Limit Theorem to do Linear Combinations on random variables that are not known to be normally distributed. Keep in mind that this concept is simple to apply, but presenting properly is an important requirement too :) Here is a nice illustration of the Central Limit Theorem.