Answer:
Total possible routes participants can choose = 4×3 = 12 ways
The correct option is - b. 4×3
Explanation:
Given - A behavioral economist studies transportation habits in an
urban center. She identifies 4 bus routes that connect to 3
different light rail routes available to participants in the study.
To find - Before she interviews participants, she must determine the
number of possible routes participants can choose to use.
Which expression represents the number of available options.
Proof -
Given that ,
Total bus routes = 4
So, number of possible ways she use the bus route = 4
Also,
The 4 bus route connects to 3 different light rail
So, possible ways that she use light rail = 3
∴ we get
Total possible routes participants can choose = 4×3 = 12 ways
The correct option is - b. 4×3