问题如下：
The height of a bar in a histogram represents the matching data interval’s:
选项：
A.relative frequency
absolute frequency
cumulative frequency
解释：
B is correct. In a histogram, the height of each bar represents the absolute frequency of its associated data interval.
A is incorrect because the height of each bar in a histogram represents the absolute (not relative) frequency.
C is incorrect because the height of each bar in a histogram represents the absolute (not cumulative) frequency.
请问这是哪个知识点
