Histogram can only be formed with continuous classification of data (True/False).
True. A histogram is drawn only for a continuous variable. The provided text states that while a bar diagram can represent both discrete and continuous variables, a histogram is exclusively drawn for a continuous variable. This is because, for continuous variables, the lower class boundary of a class interval fuses with the upper class boundary of the previous interval, ensuring there is no open space between the rectangles.
Explanation
The statement is True. The textbook context explicitly mentions that 'We can have a bar diagram both for discrete and continuous variables, but histogram is drawn only for a continuous variable.' It further explains that for continuous variables, the class boundaries fuse together, making the rectangles adjacent, which is a fundamental requirement for constructing a histogram.