Rs Aggarwal 2018 Solutions for Class 6 Math Chapter 1 Number System are provided here with simple step-by-step explanations. These solutions for Number System are extremely popular among Class 6 students for Math Number System Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Rs Aggarwal 2018 Book of Class 6 Math Chapter 1 are provided here for you for free. You will also love the ad-free experience on Meritnationâ€™s Rs Aggarwal 2018 Solutions. All Rs Aggarwal 2018 Solutions for class Class 6 Math are prepared by experts and are 100% accurate.

#### Page No 235:

#### Question 1:

Define the terms:

(i) Data

(ii) Raw data

(iii) Array

(iv) Tabulation of data

(v) Observations

(vi) Frequency of an observation

(vii) Statistics

#### Answer:

(i) Data: It refers to the information in the form of numerical figures.

The marks obtained by 5 students of a class in a unit test are 34, 45, 65, 67, 87.

We call it the data related to the marks obtained by 5 students of a class in a unit test.

(ii) Raw Data: Data obtained in the original form is called raw data.

(iii) Array: Arranging the numerical figures in an ascending or a descending 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) Observations: Each numerical figure in a data is called an observation.

(vi) Frequency of an observation: The number of times a particular observation occurs is called its frequency.

(viii) Statistics: It is the science that deals with the collection, presentation, analysis and interpretation of numerical data.

#### Page No 235:

#### Question 2:

The number of children in 25 families of a colony are give 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 the form of a frequency distribution table.

#### Answer:

#### Page No 235:

#### Question 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 the form of a frequency distribution table.

#### Answer:

#### Page No 235:

#### Question 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.

#### Answer:

#### Page No 235:

#### Question 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.

#### Answer:

#### Page No 235:

#### Question 6:

Fill in the blanks:

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

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

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

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

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

#### Answer:

(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 of data__.

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