Mathematics for IGCSE & O level - Statistical Diagrams (Section 6 - No. 43)
What does a flat or horizontal portion of a cumulative frequency diagram indicate?
The frequency is increasing rapidly.
The frequency is constant.
There are no observations in that interval.
The frequency is decreasing.
ব্যাখ্যা
A flat section means the cumulative frequency is not changing, indicating no data falls within that interval.