Final answer:
The percentage of students absent in Mrs. Lee's class is calculated using the formula (Part/Whole) × 100, resulting in 8% of the students being absent.
Step-by-step explanation:
To calculate the percentage of students who were absent, we need to apply the basic formula for percentage: Percentage (%) = (Part/Whole) × 100.
In this scenario, the part is the number of students absent, which is 2, and the whole is the total number of students, which is 25. Plugging these numbers into the formula, we get:
Percentage of students absent = (2/25) × 100 = 0.08 × 100 = 8%.
Therefore, 8% of the students were absent according to Mrs. Lee's attendance observation.