The image contains a math problem asking to calculate the average age of students in class 2F based on a frequency table. Here's the breakdown:

Table provided:

• Ages (in years): 12, 13, 14, 15
• Number of students (frequency): 2, 13, 9, 1

Steps to calculate the average age:

1. Multiply each age by its corresponding frequency:

   • $12 \times 2 = 24$
   • $13 \times 13 = 169$
   • $14 \times 9 = 126$
   • $15 \times 1 = 15$

2. Add these products:

   • $24 + 169 + 126 + 15 = 334$

3. Add the total number of students:

   • $2 + 13 + 9 + 1 = 25$

4. Divide the total sum by the total number of students to find the average:

   • $\frac{334}{25} = 13.36$ (rounded to two decimal places)

Final Answer:

The average age of the students in class 2F is approximately 13.36 years.

Would you like further details or have any questions?

Related Questions:

1. How would the average change if one student aged 15 left the class?
2. How do we calculate the median age for this data set?
3. What is the mode of the given ages in the table?
4. Can we calculate the range of ages for class 2F? If so, how?
5. How do weighted averages differ from simple averages?

Tip:

When working with frequency tables, always double-check the totals to ensure no errors in calculations!