When you compare these probabilities, it appears more likely that your coin is the coin.
If you flip a fair coin 10 times, what is the probability of obtaining as many heads as you did or greater?
0.9453
0.1719
0.7769
0.5234
The probability you just found is a measure of how unusual your results are if your coin is fair. A low probability (0.10 or less) indicates that your results are so unusual that it is unlikely that you have the fair coin; thus, you can infer that your coin is unfair.
On the basis of this probability, you infer that your coin is unfair.
Click here to find out whether you were flipping the fair coin or the unfair coin.