Provide your best answer for the following math problem. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The problem is: a , b , c , d , e , f , g , h sitting in a row what is the probability that a , b , d are sitting together ?
3 / 28
The problem does not provide enough information to determine the probability.