Which is a two-dimensional graph?

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Pie

Bar

Histogram

Frequency Curve

answer is C.

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Detailed Solution

Here in this problem we have four options and among these four we have to find which ones are two-dimensional graphs. The options given are pie, bar, histogram and frequency curve.
A two-dimensional graph is a graph that expresses data on both the x-axis and the y-axis.
A pie chart is a statistical graphic that uses a circle and its sector to represent data. In a pie chart, the arc length of each slice (and consequently its central angle and area) is proportional to the quantity it represents. Although it is named for its resemblance to a cake that has been cut, there are differences in the way it can be presented.
A bar chart represents categorical data using rectangular bars, and the heights of these bars are measured on the y-axis and are proportional to the value they represent. Bars can be drawn vertically or horizontally. A vertical bar chart is sometimes called a bar chart.
A histogram is a way of representing data in the form of rectangular bars, where the height of the bar represents the value and the thickness represents the length of the interval between the numbers on the x-axis. A histogram is a graph that allows you to discover and show the underlying frequency distribution (shape) of a set of continuous data.
A frequency curve is a smooth curve for which the total area is assumed to be uniform. It is a limiting form of a histogram or frequency polygon. The frequency curve for the distribution can be obtained by drawing a freehand smooth curve through the midpoints of the upper sides of the rectangles forming the histogram.
From these descriptions, it is clear that only the histogram uses both axes to represent this data, and is therefore the only two-dimensional graph of the four.
So option (3) is the correct answer.

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