(a)The table shows the distribution of heights ( cm ) of 60 seedlings in a vegetable garden. Heights(cm) 0.1 - 0.3 0.4 - 0.6 0.7 - 0.9 1.0 - 1.4 1.5 - 1.9 2...

Assessment: WAEC SSCE - Further Mathematics - 2023 (Essay) Subject: Further Mathematics

Question 1 Report

(a)The table shows the distribution of heights ( cm ) of 60 seedlings in a vegetable garden.
 

Heights(cm) 0.1 - 0.3 0.4 - 0.6 0.7 - 0.9 1.0 - 1.4 1.5 - 1.9 2.0 - 22 2.3 - 2.5
Frequency      6       9      12      15      3       6       9

 

Draw a histogram for the distribution.

(b) The table shows the distribution of heights ( cm ) of 60 seedlings in a vegetable garden.
 

Heights(cm) 0.1 - 0.3 0.4 - 0.6 0.7 - 0.9 1.0 - 1.4 1.5 - 1.9 2.0 - 2.2 2.3 - 2.5
Frequency       6       9      12      15       3       6       9

Use the histogram to estimate the modal height of the seedlings.

 

Answer Details

(a) 

        Class intervals          Class boundaries         Frequency
             0.1 - 0.3              0.05 - 0.35                6
             0.4 - 0.6              0.35 - 0.65                9
             0.7 - 0.9              0.65 - 0.95               12
             1.0 - 1.4              0.95 - 1.45               15
             1.5 - 1.9              1.45 - 1.95                3
             2.0 - 2.2              1.95 - 2.25                6
             2.3 - 2.5              2.25 - 2.55                9

 

Open photo

(b) The estimate of the modal height of the seedlings is 1.08

 

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