Chapter 12
CLASS IX (NCERT) CHAPTER 12 : STATISTICS 12.1 Introduction Statistics- It is a study of data. Data- Individual pieces of factual information used for analysis. Graph- Diagram of data, which makes understanding easier. It has axes. Here, we are only talking about graphs with two axes, one horizontal axis named as X axes and vertical axes as Y axes. As we studied earlier, data can be represented in the form of tables. Suppose we have a data of score of 20 students in mathematics exam. Marks obtained: 10, 11...