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The question shown in the image asks to determine the cumulative frequency for the second class, which is "6.7–7.8."

The table provides hourly wage classes and their corresponding frequencies:

- **Class**: 5.5–6.6 → **Frequency**: 5
- **Class**: 6.7–7.8 → **Frequency**: 11
- **Class**: 7.9–9.0 → **Frequency**: 6
- **Class**: 9.1–10.2 → **Frequency**: 6
- **Class**: 10.3–11.4 → **Frequency**: 10

### To find the cumulative frequency for the second class:
Cumulative frequency is the sum of the frequencies up to that class. For the second class (6.7–7.8):

- Cumulative frequency for the first class (5.5–6.6): 5
- Frequency for the second class (6.7–7.8): 11

Thus, the cumulative frequency for the second class is:

\[
\text{Cumulative frequency} = 5 + 11 = 16
\]

### The cumulative frequency for the second class is **16**.

Do you have any questions or want more details?

Here are 5 related questions:
1. How is cumulative frequency calculated for multiple classes?
2. What is the cumulative frequency for the third class in the table?
3. How does cumulative frequency help in understanding data distribution?
4. How would you plot a cumulative frequency graph for the given data?
5. What is the difference between cumulative frequency and regular frequency?

**Tip**: Cumulative frequency is a great tool for understanding how data accumulates as you move through different categories in a dataset.

Determine the cumulative frequency for the second class of hourly wage (6.7–7.8) from the table provided.

Learn how to calculate the cumulative frequency for the second class (6.7–7.8) in the table of hourly wages at the first job. The cumulative frequency is determined by adding the frequencies of all classes up to the class in question. Suitable for students in Grades 6-8.

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