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In this problem, Jessica needs to choose a class from each of four categories: Economics, Mathematics, Education, and Sociology. The number of available choices for each category is given in the table:

- **Economics:** 2 choices
- **Mathematics:** 2 choices
- **Education:** 4 choices
- **Sociology:** 3 choices

However, it states that the "2 most popular classes in Sociology are full," which means Jessica has **only 1 choice left** in Sociology.

Now, let's calculate the total number of different sets of classes Jessica can choose:

- **Economics:** 2 choices
- **Mathematics:** 2 choices
- **Education:** 4 choices
- **Sociology:** 1 choice (due to the two popular classes being full)

The total number of different sets of classes is the product of the number of choices in each category:

\[
2 \times 2 \times 4 \times 1 = 16
\]

Thus, Jessica has **16 different sets of classes** to choose from.

Would you like further clarification on this? Here are some related questions:

1. What if more Sociology classes were full? How would that change the outcome?
2. How can we calculate the total number of sets if there were more categories?
3. What if Jessica could choose more than one class from each category?
4. How does restricting availability in one category affect the total combinations?
5. How would the calculation change if Jessica was required to take multiple classes in one subject?

**Tip:** When dealing with combination problems, always focus on the choices available in each independent category and multiply them.

Jessica's class schedule for next semester must consist of exactly one class from each of the four categories: Economics, Mathematics, Education, and Sociology. The table lists the number of available choices. All sections for the two most popular Sociology classes are full. Determine the number of different sets of classes Jessica can take.

Determine how many different sets of classes Jessica can take for next semester, given the available choices in Economics, Mathematics, Education, and Sociology, with restricted availability in Sociology. This combinatorics problem is suitable for Grades 6-8.

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