Gujarat Board GSEB Solutions Class 9 Maths Chapter 14 Statistics Ex 14.1 Textbook Questions and Answers.

## Gujarat Board Textbook Solutions Class 9 Maths Chapter 14 Statistics Ex 14.1

Question 1.

Give five examples of data that you can collect from your day-to-day life.

Solution:

- A number of students in our class.
- A number of fans in our school.
- Electricity bills of our house for the last two years.
- Election results obtained from television or newspaper.
- Literary rate figure obtained from the educational survey.

Question 2.

Classify the data in Q. 1 above as primary or secondary data

Solution:

(i), (ii) and (iii) are primary data, (iv) and (v) are secondary data.

Primary data:

When the information is collected by the investigator herself or himself with a definite

objective is called primary data. These types of data are original and collected for the first time.

Secondary data:

When the information is gathered from a source (like newspaper, TV, or some records) that already had the information stored, the data is called secondary data. Such data has been collected by someone else.