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What is the class midpoint for the sixth class?

class midpoint = 

To find the class midpoint for the sixth class in the histogram, we first need to identify the lower and upper limits of that class. The midpoint is calculated as the average of the lower and upper class limits.

### Analyzing the Histogram

Looking at the x-axis, the intervals appear to be:
- 130 to 140
- 140 to 150
- 150 to 160
- 160 to 170
- 170 to 180
- 180 to 190 (sixth class)

#### Identifying the Sixth Class

The sixth class range is:
- Lower limit: 180
- Upper limit: 190

#### Calculating the Class Midpoint

The formula for the class midpoint is:

\[
\text{Class Midpoint} = \frac{\text{Lower Limit} + \text{Upper Limit}}{2}
\]

Substitute the values for the sixth class:

\[
\text{Class Midpoint} = \frac{180 + 190}{2} = \frac{370}{2} = 185
\]

### Answer

The class midpoint for the sixth class is **185**.

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

1. What is the frequency of the sixth class?
2. How can you determine the range of the data from the histogram?
3. What is the significance of the class midpoint in data analysis?
4. How would you find the cumulative frequency up to the sixth class?
5. Can you determine if the data is symmetric or skewed based on this histogram?

**Tip:** The class midpoint represents the center value of a class interval and is often used to summarize the data within that interval.

Learn how to calculate the class midpoint for the sixth class in a histogram with a step-by-step solution. This problem involves data analysis and statistical concepts, including the class midpoint formula. Suitable for Grades 7-9 students.

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