# Data Handling

#### Summary*arrow_upward*

**Data**

Data is a collection of numbers gathered to get some information.

To get the required information, all observations should be recorded.

Tally marks are used to organise the observations. Record every observation by a vertical mark, but every fifth observation should be recorded by a mark across the four earlier marks, like this:. We depict each observation with the help of tally marks.

For example, a group of persons and their sizes of shoes. The tabular form representing the tally marks is as shown here.

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#### Questions & Answers*arrow_upward*

### 1 . math problem

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.

### 5 . GIVE ME STEPS TO SOLVE THIS TYPE OF PROBLEM.

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

...