Waec Model Questions Vol1 2019 Mathematics Question 4
Practice objective / multiple choice question 4 from the 2019 Waec Model Questions Vol1 Mathematics examination.
A class of 20 students obtained the following test scores: - 45 (2 students) - 55 (3 students) - 65 (5 students) - 75 (6 students) - 85 (3 students) - 95 (1 student) The original mean score is calculated. Afterwards, each score is increased by 5 % of the difference between 100 and the original score (i.e., new_score = original + 0.05 × (100 - original)). Find the increase in the mean score after this adjustment, giving your answer to two decimal places.
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About This Question
This is Waec Model Questions Vol1 2019 Mathematics Question 4. It is a objective / multiple choice question from the 2019 Waec Model Questions Vol1 Mathematics examination.
Difficulty level: Hard .
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