Class Interval Frequency Class boundaries Class Mid-point \(1.5 - 1.9\) \(2\) \(1.45 - 1.95\) \(1.7\) \(2.0 - 2.4\) \(21\) \(1.95 - 2.45\) \(2.2\) \(2.5 - 2...

Assessment: JAMB UTME - Mathematics - 1995 Subject: General Mathematics

Question 1 Report

Class Interval Frequency Class boundaries Class Mid-point
\(1.5 - 1.9\) \(2\) \(1.45 - 1.95\) \(1.7\)
\(2.0 - 2.4\) \(21\) \(1.95 - 2.45\) \(2.2\)
\(2.5 - 2.9\) \(4\) \(2.45 - 2.95\) \(2.7\)
\(3.0 - 2.9\) \(15\) \(2.95 - 3.45\) \(3.2\)
\(3.5 - 3.9\) \(10\) \(3.45 - 3.95\) \(3.7\)
\(4.0 - 4.4\) \(5\) \(3.95 - 4.45\) \(4.2\)
\(4.5 - 4.9\) \(3\) \(4.45 - 4.95\) \(4.7\)

The median of the distribution above is

Answer Details
Median =  a + b f m  ( 1 2 ∑ f − C F b )
= 2.95 +  0.5 15 (2.-7)
= 2.95 +  0.5 15  x 13
= 2.95 + 0. 43
= 3.38
= 3.4

Download The App On Google Playstore

Everything you need to excel in your exams

Green Bridge CBT Mobile App
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning