Why is 3 random words as a password better than a load of random characters?

Question

Why is 3 random words as a password better than a load of random characters?

In: 52

Answer 1

Because longer passwords are usually always better than shorter ones and CorrectHorseBatteryStaple is easy to remember, where as 12%spiiBd$>Q-745gTmPDj#5 is really hard to remember despite them being similar lengths.

https://imgs.xkcd.com/comics/password_strength.png