Question

have a stats midterm today and im barely starting to review, anyways
i'm confused with this:

In a political science class of 35 students, 21 favor abolishing the electoral college and thus electing
the President of the United States by popular vote. If two students are selected at random from this class,
what is the probability that both of them favor abolition of the electoral college? Draw a tree diagram for
this problem.

Answer 1

Draw a tree diagram for
this problem.

Answer 2

something like this