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To determine how many teachers in the school are aged 30 to 39 years old, we can use the stacked bar chart.

The age range 30 to 39 is represented by the **purple segment** in the bar chart, according to the key on the right side. Now, let's analyze the chart:

- For **Male** teachers: The purple segment reaches up to approximately 6 teachers.
- For **Female** teachers: The purple segment reaches up to approximately 8 teachers.

Thus, the total number of teachers aged 30 to 39 years old is:
\[
6 \, (\text{Male}) + 8 \, (\text{Female}) = 14 \, \text{teachers}.
\]

So, there are **14 teachers** in the school aged 30 to 39 years old.

Would you like further details or have any questions? Here are some related questions:

1. How many male teachers are over 50 years old?
2. What is the total number of teachers in the school?
3. How many teachers are aged 20 to 29 years old?
4. What is the distribution of male and female teachers aged 40 to 49 years old?
5. How does the number of female teachers compare across all age groups?

**Tip:** When analyzing a stacked bar chart, it's helpful to look at each segment carefully and compare their heights to the axis values for accuracy.

How many teachers in the school are aged 30 to 39 years old?

Learn how to interpret a stacked bar chart to find the number of teachers aged 30 to 39 in a school. This example explains how to analyze the purple segment representing this age group for both male and female teachers. Suitable for students in Grades 5-7.

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