BOOKS: For 12 pages randomly selected from each of three books, the data set lists the mean number of
words per sentence, the mean number of characters per word, the Flesch Reading Ease score, and the
Flesch-Kincaid Grade Level score. The books are The Bear and the Dragon by Tom Clancy, Harry
Potter and the Sorcerer’s Stone by J. K. Rowling, and War and Peace by Leo Tolstoy.
Clancy
Words/sentence Characters/word Flesch Reading EaseFlesch-Kincaid Grade Level
15 4.8 58.2 8.8
9.8 4.5 73.4 5.4
8.1 4.6 73.1 5
13.5 4.5 64.4 7.6
24 4 72.7 9
9.8 4 89.2 3.2
33 4.6 43.9 12
9.4 4.5 76.3 4.9
8.3 4.4 76.4 4.6
11.3 4.4 78.9 5
11.4 4.3 69.4 6.4
12.4 4.3 72.9 6.1
Tolstoy
Words/sentence Characters/word Flesch Reading EaseFlesch-Kincaid Grade Level
15.7 4.1 85.3 5.2
9 4.2 84.3 3.7
16.3 4.2 79.5 6.1
14.5 4.4 82.5 4.9
9.7 4.3 80.2 4.4
7.4 4.2 84.6 3.2
14 4.5 79.2 5.6
16.1 4.5 70.9 6.9
13.9 4.3 78.6 5.7
12.5 4 86.2 4.1
17.2 4.4 74 6.7
11.5 4.3 83.7 4.4
Rowling
Words/sentence Characters/word Flesch Reading EaseFlesch-Kincaid Grade Level
20.6 4.3 69.4 8.6
28 4.5 64.2 9.8
12 4.5 71.4 6.1
11.5 4.5 71.6 5.9
17.4 4.5 68.5 7.7
19.7 4.8 51.9 10.9
20.3 4.3 72.2 8.2
17.8 4.2 74.4 7.2
22.1 4.7 52.8 11
31.4 4.3 58.4 11.5
18.3 4.4 65.4 8.4
11.7 4.5 73.6 5.9
the mean number of
e score, and the
Clancy, Harry
oy.