In this video, Question 10 of the 2020 WAEC WASSCE Maths Theory Question is well treated on the cumulative frequency table with the OGIVE curve being used to further estimate the Median of the Grouped Data.
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Highlights of the video include:
0:00 Welcome to Davetuts Academy
0:08 Problem statement
1:17 The Cumulative Frequency Table
5:36 Scaling the Graph for Data Entry
13:09 Extrapolating the values for the x and y axes
18:09 Plotting the Cumulative Frequency Curve
18:32 Evaluating the Median Mark
20:52 Finding the Least Mark for Distinction
23:30 Overview