Answer:
A greater percentage of second-lunch students (39%) eat outside.
Step-by-step explanation:
The proportion of students who eat first lunch is 0.54. Out of those, 0.19 of them eat outside; this is 0.19/0.54 ≈ 0.35.
The proportion of students who eat second lunch is 0.46. Out of those, 0.18 of them eat outside; this is 0.18/0.46 ≈ 0.39.
