What is the length distribution of the top K words? The table shows the number of words of fixed word length within the top 100 words.
Words of higher rank are longer on average. This should move the maximum in the distribution to the left for higher K.
Table data:
select 100,length(word) as k, count(*) as cnt from words where w_id>100 and 100+100>=w_id group by k;
3.5.2 Average word length for different frequency ranges