Mathematics for IGCSE & O level - Statistical Diagrams (Section 1 - No. 5)
What is the relationship between cumulative frequency and the total number of data points?
It is always equal.
It increases until it equals the total number of data points.
It always decreases as the data values increase.
It has no relationship.
Giải thích
The cumulative frequency increases until it reaches the total number of data points.