Ex.14.1 Q2 Statistics Solution - NCERT Maths Class 9
Go back to 'Ex.14.1'
Identify the data in \(14.1(1)\) above as primary or secondary.
Think how have you collected the data:
- Did you collect the data all by yourself investigating around? If yes, primary.
- Did you obtain the data from a source where the information has been stored already? If yes, secondary.
Based on the observation, data in \(2, 4\) are primary and the data in \(1, 3\) and \(5\) are secondary.