Statistics. Mathematics CBSE, Class 9: lessons, tests, tasks.

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1.	Introduction to statistics
2.	Collection of data
3.	Presentation of data
4.	Construction of frequency distribution tables using ungrouped data
5.	Construction of frequency distribution table using grouped data
6.	Conversion of discontinuous data into continuous data
7.	Graphical representation of data
8.	Histograms
9.	Frequency polygons
10.	Measures of central tendency

1.	Find the range Difficulty: easy	3
2.	Calculate the mean Difficulty: easy	3
3.	Complete the following Difficulty: easy	7
4.	Find the mode Difficulty: easy	3
5.	Convert to frequency tables Difficulty: medium	6
6.	Determine the median Difficulty: medium	4
7.	Answer the questions Difficulty: medium	4
8.	Determine the mode Difficulty: medium	4
9.	Answer the given questions Difficulty: medium	4
10.	Construct a continuous series frequency distribution table Difficulty: hard	5
11.	Determine the mean Difficulty: hard	5

1.	Training test Difficulty: easy	14
2.	Training test Difficulty: medium	14

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Methodical recommendation

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