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To determine the class width of this frequency distribution table, we need to look at the class intervals provided for the number of students. The class width is the difference between the lower and upper boundaries of any class interval.

From the table:
- The first class is "0 - 3"
- The second class is "4 - 7"
- The third class is "8 - 11"
- The fourth class is "12 - 15"
- The fifth class is "16 - 19"

Now, calculate the class width:
- For the first class, the upper boundary is 3, and the lower boundary is 0, so the width is \( 3 - 0 = 3 \).
- Similarly, the other classes have the same width.

Thus, the **class width is 4**.

Would you like more details or clarification on this? 

Here are some related questions for further exploration:

1. What is the difference between class boundaries and class limits?
2. How do you calculate the frequency of a given class in a frequency distribution?
3. What is a cumulative frequency distribution, and how do you calculate it?
4. How do you interpret the frequency distribution table in a real-world context?
5. How do you calculate the midpoint for each class interval?

**Tip:** When determining the class width, make sure to check for consistency across all intervals, as they should generally be equal.

What is the class width for this Frequency Distribution Table?

Learn how to calculate the class width in a frequency distribution table. The example covers data for a tutoring center, showing frequency distribution with intervals of 0-3, 4-7, 8-11, 12-15, and 16-19, and explains the class width determination process.

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