Explanation:

To find the higher class boundary of a class in a frequency distribution, we need to understand the concept of class boundaries and midpoints.

Class Boundaries:
Class boundaries are the values that separate one class interval from another. They are obtained by adding or subtracting half of the interval width to the lower and upper class limits, respectively.

Midpoint:
The midpoint of a class interval is the average of the lower and upper class limits. It represents the center value of the class.

Finding the Higher Class Boundary:
To find the higher class boundary, we need to add half of the interval width to the midpoint of the class.

Let's denote the lower class boundary as L and the midpoint as m, and assume the interval width as w.

The formula to find the higher class boundary (H) is:
H = m + (w/2)

Example:
Let's consider an example to understand the concept better. Suppose we have a class with a lower class boundary of 10 and a midpoint of 15. The interval width is 6.

Using the formula, we can find the higher class boundary as follows:
H = m + (w/2)
H = 15 + (6/2)
H = 15 + 3
H = 18

Therefore, the higher class boundary of the given class is 18.

Summary:
- The lower class boundary is denoted as L, and the midpoint is denoted as m.
- To find the higher class boundary, we use the formula H = m + (w/2), where H represents the higher class boundary, m is the midpoint, and w is the interval width.
- Adding half of the interval width to the midpoint gives us the higher class boundary.
- It is important to understand the concept of class boundaries and midpoints to accurately calculate the higher class boundary in a frequency distribution.