Class 11 Statistics Chapter 2 Collection of Data-PDF NCERT Solutions for Class 11 Statistics Chapter 2 Collection of Data PDF Download Free Chapter 1 Introduction Chapter 2 Collection Of Data Chapter 3 Organisation Of Data Chapter 4 Presentation Of Data Chapter 5 Measures Of Central Tendency Chapter 6 Measures Of Dispersion Chapter 7 Correlation Chapter 8 Index Numbers NCERT Solutions for Class 11 Statistics, Chapter 2: Collection of Data, Question Answers PDF.