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

1,590 words

85% Coverage

2,312 words

90% Coverage

3,392 words

95% Coverage

5,271 words

98% Coverage

6,869 words

99% Coverage

7,401 words

Total Words

7,934

Difficulty Progression

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

Progress	Difficulty	Peak
0%	3.83/5	4.49/5
10%	3.74/5	4.57/5
20%	4.27/5	4.71/5
30%	4.14/5	4.66/5
40%	3.62/5	4.50/5
50%	4.15/5	4.66/5
60%	4.37/5	4.75/5
70%	4.09/5	4.64/5
80%	4.13/5	4.66/5
90%	3.75/5	4.51/5
Overall	4.11/5	4.64/5

Deciles

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

10%

2.29/5

20%

3.00/5

25%

3.22/5

30%

3.43/5

40%

3.85/5

50%

4.11/5

60%

4.29/5

70%

4.47/5

80%

4.64/5

90%

4.82/5

Overall Difficulty

4.11/5

Peak Difficulty

4.64/5