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The image you provided shows a frequency distribution table for a set of values labeled "Nilai" (range of values) and their corresponding "Frekuensi" (frequencies). Additionally, the sum of the frequencies is given as 90. There is also a list of options below (a. 36, b. 44, c. 54, d. 56, e. 60), which seems to be related to a question about the data.

### Interpreting the Table:

| Nilai (Range) | Frekuensi (Frequency) |
|---------------|-----------------------|
| 11 – 20       | 3                     |
| 21 – 30       | 7                     |
| 31 – 40       | 10                    |
| 41 – 50       | 16                    |
| 51 – 60       | 20                    |
| 61 – 70       | 14                    |
| 71 – 80       | 10                    |
| 81 – 90       | 6                     |
| 91 – 100      | 4                     |
| **Total (∑f)**| **90**                |

The question likely asks for the mean (average) of the distribution based on the frequency data, or another summary statistic.

### Calculating the Mean:

To find the **mean**, we need to:
1. Find the **midpoint** for each class (the average of the lower and upper bounds for each interval).
2. Multiply each midpoint by its corresponding frequency.
3. Sum the results.
4. Divide by the total frequency (90).

Let's calculate the midpoints and proceed with finding the mean.

Would you like me to proceed with the full detailed calculation of the mean, or do you have another question related to this?

Based on the frequency distribution table provided, what is the mean or related calculation from the given data?

Learn how to calculate the mean from a frequency distribution table. This problem involves finding the midpoints of class intervals and applying the mean formula using the frequency distribution of the data. Suitable for students in Grades 10-12.

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