Question: A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of the word.
- The moving nger writes and, having writ,
- Moves on; or all your Piety nor Wit
- Shall lure it back to cancel half a line,
- Nor all your tears wash out a word of it.