Data Handling
Table and Tally marks
Before discussing the table, we need to know about the data. The simplest way to collect data is observation. Data is a collection of numbers or measurements of things. Using table data can be represented in an easier way.
- A table is a numerical representation of the data in the form of rows and columns.
How to Make a Table for Data
- First, we need to collect the data and organize it properly before representing it through a table.
- A table consists of multiple numbers of rows and columns.
Example: A table is drawn below.
- Here the rows are the one that runs horizontally and columns are the one that runs vertically. Together
these rows and columns are called tables.
Example:
- Each box of the table is called a cell.
Example:
- In the first row and first column cell, the name of objects should be written from the data. In the second
column and first-row cell, the number of objects should be written from the data.
Example:
- Always take one row extra from the total number of objects.
Here it is explained with an example.Example:
Sanju bought 78 pencils, 89 pens, 65 chalks, 73 dusters, 48 notebooks, 56 books, and 65 rubbers, for his stationary shop. Make a list of the things he has brought.
Answer:
Here is the list of things Sanju has brought.
Interpretation of data from Table
Here it is explained with an example.
Example:
All the fruits that Ranju has in his basket are arranged in the below table.
Fruits | Numbers |
Apples | 18 |
Pears | 29 |
Oranges | 45 |
Pineapples | 13 |
Watermelons | 8 |
Guavas | 16 |
Grapes | 65 |
From the table answer the below questions.
- How many apples are there in the basket?
- What is the total number of guavas and pineapples in the basket?
- How many more grapes are there in the basket compared to the number of oranges?
Answer:
-
Fruits Numbers Apples 18 Pears 29 Oranges 45 Pineapples 13 Watermelons 8 Guavas 16 Grapes 65 From the table, we can see that there are 18 apples in the basket.
-
Fruits Numbers Apples 18 Pears 29 Oranges 45 Pineapples 13 Watermelons 8 Guavas 16 Grapes 65 There are 13 pineapples and 16 guavas in the basket.
Total 13 + 16 = 29 -
Fruits Numbers Apples 18 Pears 29 Oranges 45 Pineapples 13 Watermelons 8 Guavas 16 Grapes 65 The number of grapes from the table is 65 and the number of oranges is 45.
Difference = 65 – 45 = 20
Hence, there are 20 more grapes than oranges.
Advantages of using Table
- The information can easily find out using the table and it is one of the efficient ways to summarize the given data in columns and rows.
- Table reduces the complexity of data represented in paragraphs and represents the data in an easier format.
Tally mark
Tally Marks are used to make counting easier and it is a visual representation of data.
- The general way of writing tally marks is as a group of five lines. The first four lines are drawn vertically and the fifth one is drawn diagonally over the four lines.
- The symbol used for the tally mark is ‘
’.
- Grouped data are arranged in a table using tally marks.
In the below table tally marks from 1 to 10 are shown.
Example:
Look at the picture and make a tally mark of it.
Answer:
Advantages of Using Tally Mark
- Tally marks are used to make counting easier.
- Tally marks help to make a visual representation of the data.
- Tally marks are also represented in table form.