Geometry

Question Analysis
This question involves using a tree diagram to find the proportion of a specific outcome within all possible outcomes.
The main focus is on calculating the probability of the specific route (taking a transfer bus) and comparing it to the total set of possible travel routes.

Key Concept Explanation
To find the fraction of a particular outcome in a tree - diagram - based scenario, we calculate the probability of that outcome by multiplying the probabilities along the relevant branches.

Step - by - Step Solution
Calculate the probability of taking a transfer bus.
The probability of taking a bus is 3/4.
Given that a bus is taken, the probability of taking a transfer bus is 2/3.
The probability of taking a transfer bus is (3/4) × (2/3) =...