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Theory
Textbook Questions
1. 
Multiple choice question
Difficulty: easy 
1

2. 
Two mark example problem
Difficulty: easy 
2

3. 
Two mark exercise problems
Difficulty: medium 
8

4. 
Five mark example problems
Difficulty: medium 
10

5. 
Five mark exercise problems  I
Difficulty: hard 
15

6. 
Five mark exercise problems  II
Difficulty: hard 
15

Practice Questions
1. 
Find the standard deviation
Difficulty: easy 
2

2. 
Calculate the mean
Difficulty: easy 
2

3. 
Determine the coefficient of variation
Difficulty: easy 
2

4. 
Find the mean
Difficulty: medium 
2

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

6. 
Determine the coefficient of variation
Difficulty: medium 
5

7. 
Which company is more consistent
Difficulty: medium 
5

8. 
Answer the questions
Difficulty: hard 
5

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

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

Key Questions for School Exam Preparation
1. 
Calculate the coefficient of variation
Difficulty: easy 
2

2. 
Find the standard deviation
Difficulty: easy 
2

3. 
Determine the coefficient of variation
Difficulty: hard 
5
