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Pictograph

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After collecting and organizing of the data , to extract some useful information can be presented pictorially. It is very conveniently and quickly to understand the data. The picture visually helps you to understand the data.

Pictograph:
A picture that visually helps us to understand data is called a pictograph. A pictograph represents data in the form of pictures, objects or parts of objects.

e.g.

In real life, pictographs are used by newspapers and magazines to attract the attention of the readers.  A pictograph helps us to answer questions on the data at a glance. To draw pictographs, we use symbols to represent a certain number of things or items.

For example, a figure of each bulb represents 100 bulbs.
The key for a pictograph tells the number that each picture or symbol represents.

a=7, b=4, c=0.

2 . What does Ratio has to do with proportion please answer

comparison of 2 numbers by dividing is called ratio whearas the equality of 2 ratios is called proportion

3 . These are the questions you would ask.And must be answserd

What does eqution means?
A statement denoting the equality of two expressions is called an equation.
For ex...

4 . why bargraph is made in graph paper

to show graphs &make it easy.

A=C+6
and,..A=B+5
A=B+C+11
A-C=B+11
5=C+11
C=  -6
B-(-6)=1
B=-6+1=-5
...

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