[bvw]

As far as I understand, and I haven't counted the number of tosses. You are not asking whats the chance of that number of H's and that number of T's, eh?

[WildTurkey]

There were fifty. Now what is the probability assuming randomness of this sequence (50 tosses)?

HHHH HHHH HHHH HHHH HHHH HHHH HHHH HHHH HHHH HHHH

[WildTurkey]

You are not asking whats the chance of that number of H's and that number of T's, eh?

No. The exact sequence as posted.