Theory
Exercises
1. 
Determine the mean using direct method
Difficulty: easy 
3

2. 
Calculate the mean
Difficulty: medium 
4

3. 
Calculate the mean using step deviation method
Difficulty: medium 
4

4. 
Find the missing frequencies
Difficulty: medium 
4

5. 
Determine the value of the frequency 'f'
Difficulty: medium 
4

6. 
Find the missing frequency 'x'
Difficulty: medium 
4

7. 
Find the mean using direct method
Difficulty: medium 
4

8. 
Find the value of the variable "a"
Difficulty: medium 
4

9. 
Calculate the mean
Difficulty: medium 
4

10. 
Find the mean weight of the students
Difficulty: hard 
5

11. 
Find the mean number of patients
Difficulty: hard 
5

12. 
Calculate the mean income of employees
Difficulty: hard 
5

13. 
Assertion and reasoning: Mean of grouped data
Difficulty: hard 
5

14. 
Calculate the mean using step deviation method
Difficulty: hard 
5

15. 
Determine mean using assumed mean method
Difficulty: hard 
5

Tests
1. 
Training test I
Difficulty: medium 
11

2. 
Training test II
Difficulty: medium 
12

3. 
Training test III
Difficulty: hard 
12
