Statistics may sound big, but it’s actually one of the easiest parts of JAMB Mathematics—if you prepare the right way. Most of the questions are direct and focus on real-life things like averages, charts, and simple data handling.
In JAMB 2025, you can expect at least two or three questions from Statistics, and they’re usually very scoring if you understand the basics. This guide will show you how to handle those questions without stress.
READ ALSO: How to Prepare for JAMB 2025 Mathematics and Pass with Ease
What JAMB Really Tests in Statistics
The focus of JAMB questions is on interpreting and calculating basic information from data. You won’t be asked to draw complicated graphs, but you should be able to read values, calculate averages, and understand how data is presented.
Here’s what you’re most likely to see:
- Mean, median, and mode
- Range (difference between highest and lowest)
- Frequency tables
- Pie charts, bar charts, and line graphs
READ: JAMB Areas of Concentration for Mathematics 2025/2026
Start with the Basics: Mean, Median, and Mode
These are the most repeated parts of JAMB Statistics.
To find the mean (average), add up all the numbers and divide by how many there are.
Example:
Numbers: 2, 4, 6, 8
Mean = (2 + 4 + 6 + 8) ÷ 4 = 20 ÷ 4 = 5
For median, arrange the numbers in order and pick the middle one.
If there are two middle numbers, find their average.
Example:
Numbers: 3, 7, 9
Median = 7
Numbers: 2, 4, 6, 8
Median = (4 + 6)/2 = 5
Mode is the number that appears most often.
Numbers: 3, 5, 3, 7, 3, 8
Mode = 3 (since it appears more than the others)
READ: JAMB Subject Combination for Mathematics 2025/2026
Frequency Tables Made Easy
JAMB may give you a frequency table and ask you to calculate something from it.
Just remember:
- The frequency tells you how many times each item appears
- To calculate the total, multiply the item by its frequency, then add up all
- Use this to find the mean, or total value
Once you’ve practiced a few examples, you’ll see that they all follow the same pattern.
Reading Charts and Diagrams
You may be given a pie chart, bar chart, or line graph. Don’t panic. Just read the labels, follow the instructions, and answer what you’re asked.
In pie charts, remember:
- A full circle is 360 degrees
- To find the angle for one category:
(Category value ÷ Total value) × 360
In bar and line graphs, just look at the values carefully and match them with the right axes. You’re not being tested on drawing—just reading and interpreting.
Final Words
Statistics in JAMB 2025 is one of the easiest ways to pick up free marks. Don’t ignore it. All the questions follow a pattern—once you’ve practiced enough, you’ll start to spot the answers quickly.
Keep your working neat, read questions carefully, and don’t rush. And if you’re stuck, skip and come back later—many students miss easy marks here just because they panicked.