What is Bar-Graph?

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graph

it gives pictorial representation

it uses horizontal and vertical bars to represent data

all of the above

answer is D.

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Detailed Solution

Concept: Data is at the heart of statistics. Data refers to information or numbers collected for a certain purpose. The plural form of datum is data (the Latin word).

Statistics is the discipline of mathematics that deals with extracting useful information from a given set of data.

The graph can also be used to show grouped data from a collection of data. There are three techniques to visualise data in a graphical format:

1.Frequency Polygons

2.Bar Graph

3.Histogram

A bar graph is a visual representation of data that uses vertical and horizontal rectangular bars with lengths proportional to the data measure.

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