29
Dec
Class 9 - Statistics, Math - Class 9 | NCERTClass 9 math tutorials, class 9 statistics, math, mathemafia, mathematics, NCERT, primary data, range, range of data, secondary data, statistics
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
Chapter 14 – Statistics