So, you think a coin toss has a 50-50 chance to go heads or tails? The physics and math are somewhat complex, but boiled down, the actual flight is determined by initial conditions.
Recent research into coin flips has discovered that the laws of mechanics determine the outcome of coin tosses: The startling finding is they aren’t random. Instead, for natural flips, the chance of a coin coming up on the same side as it started is about 51 percent. Heads facing up predicts heads; tails facing up predicts tails.
Then it gets complicated.