Why there is no C(n, x) in the statistics part of lecture?

[Jimmy0Jimmy]

Hi guys,

I realised that in the later part of this course, when it comes to the probability of getting certain heads or tails for flipping coins, there is no more C(n,x) in front of the p^x * (1-p)^(n-x). Is it just a typo or is there any reason for that?

By C(n,x) I mean the combination number of choosing x items out of total n.

[rmwkwok]

Hello @Jimmy0Jimmy,

Please check the difference between the Bernoulli distribution and the Binomial distribution.

Cheers,
Raymond