Is the coin fair?

There are two simulated coins. One coin is a fair with a .50 probability of heads. The other coin is biased with a .60 probability of heads. I will select one of the coins with equal probability and flip it once every couple of days and report the result. The market will resolve a few days after the 10th coin flip.

If the coin is fair, the market will resolve to yes. Otherwise, it will resolve to no. I will not participate in this market. Upon request, I will provide a link to the code I used to simulate the coin flips, but only after the market closes.