アンサー

Answer

Vocabulary Coverage

Learning words in frequency order, here's how many unique words you need to know to reach various coverage percentages for this series:

Coverage Words Needed % of Unique Words
75% 890 38.1%
80% 1,145 49.0%
85% 1,444 61.7%
90% 1,742 74.5%
95% 2,041 87.3%
96% 2,101 89.8%
97% 2,160 92.3%
98% 2,220 94.9%
99% 2,280 97.5%

Total Unique Words: 2,339
Total Word Occurrences: 5,971