If 20 coins are tossed, find the probability that they will all come up tails.

Given Problem : There are 20 coins that were tossed. Find the probability that all of the tossed coin will all come up tails.

Since, there are 20 coins and all of them are tossed. There’s a 1 probability that all of them will be tails. I’m talking about ALL, not individual.

But if you’re asking about probability that each of them will be tails. Well there are 20 probability that each of the coins will be in tail after tossed.