Missing lecture on Variance

[vba...@gmail.com]

Hi,

I have a question about what is happening in this video at 00:06:21 -

http://www.youtube.com/watch?v=BGXmy4vA0R0#t=381s.

The lecture 3 for Week 6 starts with the recall of the concept of Variance and Standard Deviation, while lecture 2 stopped with E[g(x)]. I think the lecture on variance is missing. Can you please check?.

Thanks!

---

Reference Key - Key('StudentQuestionEntity', 6166510216151040, namespace='ns_noc21_ma31')