The inclusive class interval are also called:

• (A) discontinuous class intervals
• (B) continuous class intervals
• (C) unequal class intervals
• (D) higher class intervals

The inclusive class intervals are commonly referred to as continuous class intervals. This means that the intervals include both endpoints, allowing for a smooth transition between classes without any gaps.

Understanding Class Intervals

Class intervals are used in statistics to group data. Here’s a brief overview of the types:

• Continuous Class Intervals: These include all values within the range, such as 10-20, where both 10 and 20 are included.
• Discontinuous Class Intervals: These do not include all values, often skipping certain ranges.
• Unequal Class Intervals: These vary in size, unlike continuous intervals which are uniform.
• Higher Class Intervals: This term typically refers to broader categories in data grouping.

In summary, the correct answer to your question is (B) continuous class intervals.