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The table above shows the weights of twelve mathematics students. Find the modal weight.

Mathematics
JAMB 2025

The table above shows the weights of twelve mathematics students. Find the modal weight.

  • A. 54
  • B. 58
  • C. 60
  • D. 62
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Correct Answer: Option B
Explanation

Total number of students = x + 1 + 2x + 2 + 3 = 3x + 6 = 12  

Solve for x:  
3x + 6 = 12  
3x = 6  
x = 2  

Now substitute x = 2:  

- 54 kg: 2 students  
- 56 kg: 1 student  
- 58 kg: 4 students (2x = 4)  
- 60 kg: 2 students  
- 62 kg: 3 students  

The frequencies are: 2, 1, 4, 2, 3.  

The highest frequency is 4 (at 58 kg).  Thus, Modal weight: 58 kg

There is an explanation video available below.


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Explanation Video

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