Algebra-1

Question Analysis
This question uses the table, focusing on the "Afternoon Classes" column.
The main focus is on calculating the marginal frequency for students who prefer afternoon classes.

Key Concept Explanation
Marginal Frequency (Column): The total number of individuals in a column, calculated by summing all joint frequencies within that column. It shows the total count for one variable (e.g., all students who like afternoon classes, regardless of grade).

Step-by-Step Solution
Find the column labeled "Afternoon Classes".
The marginal frequency for this column is the "Column Total" at the bottom of the column, which is 110.