What this is
Union rounded to 4.5%-12%, point 7% (a=1, N=30 gives 6.3%; top-five a=1 at 65% gives 7.2%). Rank-5 year year to March 2023 uses 3.5%-10%, point 7%. vs TV Tokyo HD anime & streaming segment OP 6,587: 1,225/6,587 = 19%, 1,905/6,587 = 29%, 3,266/6,587 = 50%, 6,805/6,587 = 103%.
Where it comes from
Our calculation from other figures in the trainer’s notes.
Show the working
- Zipf rank-share model. (a) Whole line: share of rank 4 = 4^-a / sum_{k<=N} k^-a, a in [0.7,1.3], N in [15,60] => 4.4%-7.9%. (b) Top-five only: rank 4 takes 4^-a / sum_{k<=5} k^-a = 11.0% (a=1) to 13.6% (a=0.7) of the top
Where it’s used
Related figures
Built from this one