### Home > CCA > Chapter 10 > Lesson 10.2.1 > Problem 10-29

10-29.

Of the students who choose to live on the East Coast College campus, 10% are seniors. The most desirable dorm is the newly constructed OceanView dorm, and 60% of the seniors who live on campus live there, while 20% of the rest of the on-campus students live there. Homework Help ✎

Represent these probabilities in a graphical display (table, tree, or Venn diagram).

What is the probability that a randomly selected resident of the OceanView dorm is a senior?

Here is one possible diagram.

Use your diagram to find the probability.

What is the total number of students in OceanView?

What is the percent of students that are seniors?

What percent of students are seniors and live in OceanView?