# RS Aggarwal Class 6 Math Twenty-Two Chapter Data Handling Exercise 22 Solution

## EXERCISE 22

**(1) Define the terms:**

(i) **DATA** – *The word data means information in the form of numerical figures. *

(ii) **RAW DATA** – *Data obtained in the original form is called raw data.*

(iii) **ARRAY** – *Arranging the numerical figure in an ascending order is called an array.*

(iv) **TABULATION OF DATA** – *Arranging the data in a systematic form in the form of a table is called tabulation or presentation of the data.*

(v)** OBSERVATION** – *Each numerical figure in a ascending order data is called an observation.*

(vi) **FREQUENCY OF AN OBSERVATION** – *The number of times a particular observation occurs is called its frequency.*

(vii) **STATISTICS** – *It is the science which deals with the collection, presentation, analysis and interpretation of numerical data.*

**(2) The number of children in 25 families of a colony is given below:**

**2, 0, 2, 4, 2, 1, 3, 3, 1, 0, 2, 3, 4, 3, 1, 1, 1, 2, 2, 3, 2, 4, 1, 2, 2.**

**Represent the above data in form of a frequency distribution table.**

Solution: We may present the data, as shown below:

**(3) The sale of shoes of various sizes at a shop on a particular day is given below:**

**6, 9, 8, 5, 5, 4, 9, 8, 5, 6, 9, 9, 7, 8, 9, 7, 6, 9, 8, 6, 7, 5, 8, 9, 4, 5, 8, 7.**

**Represent the above data in form of a frequency distribution table.**

Solution: We may present the data, as shown below:

**(4) Construct a frequency table for the following:**

**3, 2, 5, 4, 1, 3, 2, 2, 5, 3, 1, 2, 1, 1, 2, 2, 3, 4, 5, 3, 1, 2, 3.**

Solution: We may present the data, as shown below:

**(5) Construct a frequency table for the following:**

**7, 8, 6, 5, 6, 7, 7, 9, 8, 10, 7, 6, 7, 8, 8, 9, 10, 5, 7, 8, 7, 6. **

Solution: We may present the data, as shown below:

**(6) Fill in the blanks:**

(i) Data means information in the form of __numerical figures__.

(ii) data obtained in the __original__ form is called raw data.

(iii) Arranging the numerical figures in an ascending or a descending order is called an __array__.

(iv) The number of times a particular observation occurs is called its __frequency__.

(v) Arranging the data in the form of a table is called __tabulation__.