If a person is deciding whether to do something and says "I'll flip a coin, heads I do it, tails I don't" does that fall under the prohibition of "don't divine with signs" in Vayikra 19?
Chicago Community Kollel - Parsha Encounters 4 Shevat 5768 in the name of Rabbi Yisrael Belsky Shlita, says that one may flip a coin to make a decision.
When one flips a coin and makes a decision based on the results, he does not feel his decision is necessarily the right thing to do. Rather, he was undecided, and he is leaving his decision up to "chance"
I asked this question to R' Shlomo Shlezinger Z"l and his answer was:
The very idea of Avodah Zarah assumes that some Earthy bodies or forces have a certain independence from G-d, have strengths of their own. So one who says "this dice has divine powers to guide me through my life" is an idolater.
But one who follows Moses' "וְעַתָּה אִם נָא מָצָאתִי חֵן בְּעֵינֶיךָ הוֹדִעֵנִי נָא אֶת דְּרָכֶךָ וְאֵדָעֲךָ" and asks from G-d to show His will in throwing dice, that would surely be allowed.