You can observe how the front and back appear when two coins are thrown at the same time.
What is the ratio that both are tables ?
I f you have conducted many experiments to throw two coins at the same time , and if you increase the number of experiments , what can be said about the ratio of both coins in the table compared to when the number of experiments is small ?
Also , let's mathematically find the probability that both are front , and the probability that both are back , and the probability that one is front and one is back.