If they are fair coins, it is 1/16.
The conditional probability is 1/4.
one out of four
Assuming it is a fair coin, the probability is 1/24 = 1/16.
The probability is 1/21/21/2*1/2=1/16, or 0.0625 or 6.25%
1/4
It is 0.3125
I don't know! I asked you!
0.54 or 0.0625 or 1/16.
50%
The probability of the first one is 1/6 .The probability of the second one is 1/6 .The probability of the third one is 1/6 .The probability of the fourth one is 1/6 .The probability of all four is (1/6)4 = 0.0007716 (rounded) = 0.077 %
It is (1/2)*(1/6) = 1/12