Theory
Exercises
1. 
Find the standard deviation
Difficulty: easy 
3

2. 
Calculate the mean
Difficulty: easy 
3

3. 
Determine the coefficient of variation
Difficulty: easy 
3

4. 
Find the mean
Difficulty: medium 
4

5. 
Calculate the standard deviation and coefficient of variation
Difficulty: medium 
4

6. 
Determine the coefficient of variation
Difficulty: medium 
4

7. 
Which company is more consistent
Difficulty: medium 
4

8. 
Answer the questions
Difficulty: hard 
6

9. 
Calculate the highest and lowest variation
Difficulty: hard 
5

10. 
Find which batsman is more consistent
Difficulty: hard 
5

Tests
1. 
Training test I
Difficulty: easy 
9

2. 
Training test II
Difficulty: medium 
12
