Asian-Pacific Journal of Second and Foreign Language Education

Table 3 the coverage of 560 mid-frequent words in chemistry RAs in validating corpora

From: Developing and validating a mid-frequency word list for chemistry: a corpus-based approach using big data

Statistics
Level	Token	Token%	Cumtoken%	Type	Group
BNC/COCA 1^st	55972999	59.03	59.03	5889	999
BNC/COCA 2nd	12706677	13.4	72.43	5499	1000
BNC/COCA 3rd	10935436	11.53	83.96	5341	1000
560 mid-frequency	2412420	2.54	86.5	1050	577
Off lists	12791597	13.49	99.99	314,422	314,422
Total	94819129

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