Question: 2018 Fall Midterm - 15

The Carleton Computer Science Society is organizing their annual Halloween party. At this party,

• one student is dressed up as Donald Trump,
• one student is dressed up as Kim Jong Un,
• the remaining 57 students are dressed up as Kim Kardashian.

These students are arranged, uniformly at random, on a line.
Define the event,

• A = "Donald Trump is standing next to Kim Jong Un".

What is $\Pr(A)$?