Wiktionary
n. A [well] informed guess, an estimate or guess based on experience or theoretical knowledge.
Wikipedia
Educated Guess is the thirteenth album by singer-songwriter Ani DiFranco, released January 20, 2004 (see 2004 in music). It was recorded alone at her homes in Buffalo, New York and New Orleans, Louisiana.
Usage examples of "educated guess".
From the literary style of the manuscript and my familiarity with the genre I can make an educated guess as to approximately when it was written.
He would simply have to get some preliminary results, make an educated guess at which path up the side of the bowl would prove negotiable, and trust he was right.
In other words, before even seeing me, Luce was able to make an educated guess that I was a male pseudohermaphrodite—.
We will never know his final thoughts, but can make an educated guess as to the physical sensations.
He ought to know as well as Yu that any estimate would be little more than an educated guess.
Uriel might be able to give you a good educated guess, but he had to go back to Grantville on mysterious business of his own.
We never did really find out how Chamdar'd tracked me down, but I can make a fairly educated guess.