Measures of Dispersion. Mathematics State Board, Class 10: lessons, tests, tasks.

1.	Introduction to statistics
2.	Arithmetic mean
3.	Measures of dispersion
4.	Deviations from mean, Variance and Standard deviation
5.	Methods to calculate the standard deviation of ungrouped data
6.	Methods to calculate the standard deviation of grouped data
7.	Direct method to find standard deviation of ungrouped data - Example
8.	Mean method to find standard deviation of ungrouped data - Example
9.	Assumed mean method to find standard deviation of ungrouped data - Example
10.	Step deviation method to find standard deviation of ungrouped data - Example
11.	Mean method to find standard deviation of grouped data - Example
12.	Assumed mean method to find standard deviation of grouped data - Example
13.	Step deviation method to find standard deviation of grouped data - Example

1.	Multiple choice questions I Difficulty: easy	1
2.	Multiple choice questions II Difficulty: easy	1
3.	Multiple choice questions III Difficulty: easy	1
4.	Multiple choice questions IV Difficulty: easy	1
5.	Multiple choice question V Difficulty: easy	1
6.	Multiple choice question VI Difficulty: easy	1
7.	Multiple choice question VII Difficulty: easy	1
8.	Two mark example problem I Difficulty: medium	2
9.	Two mark example problem II Difficulty: medium	2
10.	Two mark example problem III Difficulty: medium	2
11.	Two mark exercise problem I Difficulty: medium	4
12.	Two mark exercise problem II Difficulty: medium	2
13.	Two mark exercise problem III Difficulty: medium	2
14.	Two mark exercise problem IV Difficulty: medium	2
15.	Two mark exercise problem V Difficulty: medium	2
16.	Two mark exercise problem VI Difficulty: medium	2
17.	Five mark example problem I Difficulty: hard	5
18.	Five mark example problem II Difficulty: hard	5
19.	Five mark example problem III Difficulty: hard	5
20.	Five mark example problem VI Difficulty: hard	5
21.	Five mark example problem V Difficulty: hard	5
22.	Five mark example problem VI Difficulty: hard	5
23.	Five mark example problem VII Difficulty: hard	5
24.	Five mark example problem VIII Difficulty: hard	5
25.	Five mark example problem IX Difficulty: hard	5
26.	Five mark example problem X Difficulty: hard	5
27.	Five mark example problem XI Difficulty: hard	5
28.	Five mark exercise problem I Difficulty: hard	5
29.	Five mark exercise problem II Difficulty: hard	5
30.	Five mark exercise problem III Difficulty: hard	5
31.	Five mark exercise problem IV Difficulty: hard	5
32.	Five mark exercise problem V Difficulty: hard	5

1.	Find the largest value Difficulty: easy	2
2.	Find the range of the distribution Difficulty: easy	2
3.	Find the standard deviation Difficulty: easy	2
4.	Find the variance Difficulty: easy	2
5.	Find the range and its coefficient Difficulty: medium	2
6.	Calculate the standard deviation by direct method Difficulty: medium	5
7.	Calculate the standard deviation by mean method Difficulty: medium	5
8.	Calculate the standard deviation by assumed mean method Difficulty: medium	5
9.	Calculate the standard deviation by step deviation method Difficulty: medium	5
10.	Determine the standard deviation using mean method Difficulty: medium	5
11.	Find the standard deviation of 'n' natural numbers Difficulty: hard	5
12.	Determine the standard deviation using assumed mean method Difficulty: hard	5
13.	Find the standard deviation using step deviation method Difficulty: hard	5

1.	Determine the range Difficulty: easy	2
2.	Find the smallest value Difficulty: easy	2
3.	Calculate the standard deviation Difficulty: hard	5
4.	Find the remaining observation Difficulty: hard	5

1.

Methodical recommendation

Measures of Dispersion

Theory

Textbook Questions

Practice Questions

Key Questions for School Exam Preparation

Teacher manual