STT with 8 people left and I get 44. Flop comes out 10 3 4. Then one of the many voices in my head says "remember you read on FTR that if you get trips on the flop, it is very rare somebody else had trips?". So, I made a small bet to get money in the pot and some action. One guy raises and I call. I figured he may have an overpair in his hand but he called a min-raise prelflop. Some useless card comes out and he goes all in. I call. He had trip 10s.

Does anyone have a percentage to quantify "rarely" here? Thanks.