Class 9 | Chapter 14 | Statistics | Example 1 & 2

Example 1: Consider the marks obtained by 10 students in a mathematics test as given below:

55 36 95 73 60 42 25 78 75 62

The data in this form is called raw data. By looking at it in this form, can you find the highest and the lowest marks?

Example 2: Consider the marks obtained (out of 100 marks) by 30 students of Class IX of a school:

10 20 36 92 95 40 50 56 60 70 92 88 80 70 72 70 36 40 36 40 92 40 50 50 56 60 70 60 60 88

Statistics

This tutorial is recommended for the beginners to watch to understand the following:

  • What is statistics
  • Data
  • Information
  • Frequency distribution table
    • Ungrouped
    • Grouped
  • Class Intervals 
    • Overlapping
    • Non-overlapping
  • Class limits 
    • Upper class limit
    • Lower class limit

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Mathematics is like music - Enjoy it!!!