Let's say you are at a table with $5$ others, everyone is seated randomly around a $6$ person table, and you only know $1$ person at this party.
- What is the likelihood you sit next to the individual that you know?
- What is the likelihood you are seated opposite to the person that you know?
- What is the likelihood that you sit next to two strangers?
The table has $6$ seats so if you sit in any one seat then there are $5$ chairs left over. Since your friend can be seated on either side of you that leaves 3 chairs. With that reasoning would it be $1/3$ ($2/6$)?