A histogram is used to show the frequency distribution of continuous data. The frequency density is shown on the vertical axis.

True or False? A histogram is the same as a bar chart but without the gaps between the bars.

False. A histogram is not the same as a bar chart . A histogram uses frequency density, whereas a bar chart uses frequency.

True or False? The area of a bar in a histogram is proportional to its frequency .

True. The area of a bar in a histogram is proportional to its frequency . In most cases the area is equal to the frequency.

False. The height of a bar in a histogram is not equal to the frequency of that class. The height is equal to the frequency density .

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Define a histogram
A histogram is used to show the frequency distribution of continuous data. The frequency density is shown on the vertical axis.
State the formula for frequency density.
The formula for frequency density is: $frequency density = \frac{frequency}{class width}$ .
True or False?
A histogram is the same as a bar chart but without the gaps between the bars.
False.
A histogram is not the same as a bar chart.
A histogram uses frequency density, whereas a bar chart uses frequency.
True or False?
The area of a bar in a histogram is proportional to its frequency.
True.
The area of a bar in a histogram is proportional to its frequency.
In most cases the area is equal to the frequency.
True or False?
The height of a bar in a histogram is equal to the frequency of that class.
False.
The height of a bar in a histogram is not equal to the frequency of that class.
The height is equal to the frequency density.