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RBSE Solutions for Class 9 Maths Chapter 15 Statistics Ex 15.1

January 19, 2019 by Fazal Leave a Comment

RBSE Solutions for Class 9 Maths Chapter 15 Statistics Ex 15.1 is part of RBSE Solutions for Class 9 Maths. Here we have given Rajasthan Board RBSE Class 9 Maths Solutions Chapter 15 Statistics Exercise 15.1.

Board RBSE
Textbook SIERT, Rajasthan
Class Class 9
Subject Maths
Chapter Chapter 15
Chapter Name Statistics
Exercise Ex 15.1
Number of Questions Solved 2
Category RBSE Solutions

Rajasthan Board RBSE Class 9 Maths Solutions Chapter 15 Statistics Ex 15.1

Question 1.
What are primary and secondary data (RBSESolutions.com) Differentiate them?
Solution.
When an investigator collects data himself with a definite plan or design in his/her mind is called primary data.
Data which are not originally collected rather obtained from published or unpublished source are known as secondary data.
RBSE Solutions for Class 9 Maths Chapter 15 Statistics Ex 15.1

RBSE Solutions

Question 2.
Name the different methods of (RBSESolutions.com) collecting primary data.
Solution.

  1. Direct personal investigation
  2. Indirect investigation
    • Schedules to be filled in by enumeration.
    • Information through questions are to be filled in by informants.
    • Information through local sources.
    • Indirect oral investigation through experts.

We hope the given RBSE Solutions for Class 9 Maths Chapter 15 Statistics will help you. If you have any query regarding Rajasthan Board RBSE Class 9 Maths Solutions Chapter 15 Statistics Exercise 15.1, drop a comment below and we will get back to you at the earliest.

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