Propeller Opera - Volume 3 - 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

1,592 words

85% Coverage

2,310 words

90% Coverage

3,389 words

95% Coverage

5,262 words

98% Coverage

6,847 words

99% Coverage

7,376 words

Total Words

7,904

Difficulty Progression

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

Progress	Difficulty	Peak
0%	3.67/5	4.34/5
10%	3.59/5	4.42/5
20%	4.12/5	4.56/5
30%	3.99/5	4.51/5
40%	3.47/5	4.35/5
50%	4.00/5	4.51/5
60%	4.22/5	4.60/5
70%	3.94/5	4.49/5
80%	3.98/5	4.51/5
90%	3.60/5	4.36/5
Overall	3.96/5	4.49/5

Deciles

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

10%

2.14/5

20%

2.85/5

25%

3.07/5

30%

3.28/5

40%

3.70/5

50%

3.96/5

60%

4.14/5

70%

4.32/5

80%

4.49/5

90%

4.67/5

Overall Difficulty

3.96/5

Peak Difficulty

4.49/5