NCERT Book for Class 9 Mathematics Chapter 14 Statistics
Class 9 Mathematics students should refer to the following NCERT Book chapter Chapter 14 Statistics in standard 9. This NCERT Book for Grade 9 Mathematics will be very useful for exams and help you to score good marks
Chapter 14 Statistics NCERT Book Class 9
(A) Main Concepts and Results
Statistics
Meaning of ‘statistics’, Primary and secondary data, Raw/ungrouped data, Range of data, Grouped data-class intervals, Class marks, Presentation of data - frequency distribution table, Discrete frequency distribution and continuous frequency distribution.
• Graphical representation of data :
(i) Bar graphs
(ii) Histograms of uniform width and of varying widths
(iii) Frequency polygons
• Measures of Central tendency
(a) Mean
(i) Mean of raw data
Please refer to attached file for NCERT Class 9 Maths Statistics
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