Brain Valley - Statistics

Coverage

This shows how much text coverage you'll have if you know the most X frequent words in that work.

Vocabulary Coverage

Milestones

80% Coverage

1,492 words

85% Coverage

2,322 words

90% Coverage

3,790 words

95% Coverage

6,840 words

98% Coverage

11,103 words

99% Coverage

13,121 words

Total Words

15,139

Difficulty Progression

Shows how the difficulty changes as you progress through the volumes.

Progress	Difficulty	Peak
Vol 1	3.35/5	4.11/5
Vol 2	3.44/5	4.34/5
Overall	3.40/5	4.34/5

Deciles

Shows the difficulty level at or below which X% of the text falls.

10%

1.50/5

20%

2.22/5

25%

2.48/5

30%

2.74/5

40%

3.13/5

50%

3.40/5

60%

3.66/5

70%

3.92/5

80%

4.22/5

90%

4.62/5

Overall Difficulty

3.40/5

Peak Difficulty

4.34/5