The marks obtained by 10 students in a test are as follows: 3, 7, 6,
FURTHER MATHEMATICS
WAEC 2012
The marks obtained by 10 students in a test are as follows: 3, 7, 6, 2, 8, 5, 9, 1, 4 and 10. Find the mean mark.
- A. 4.50
- B. 5.50
- C. 6.50
- D. 6.75
Correct Answer: B. 5.50
Explanation
Mean \(\bar{x}\) = \(\frac{3 + 7 + 6 + 2 + 8 + 5 + 9 + 1 + 4 + 10}{10} \)
= \(\frac{55}{10} = 5.50\)
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