Neco 2021 Data Processing Question 34
Practice objective / multiple choice question 34 from the 2021 Neco Data Processing examination.
A class of 30 students took a test. Their scores are grouped as follows:\n- 40-49: 4 students\n- 50-59: 6 students\n- 60-69: 8 students\n- 70-79: 7 students\n- 80-89: 3 students\n- 90-100: 2 students\nAssuming each score in a class interval can be represented by the interval midpoint, (i) calculate the estimated mean score, (ii) if the teacher adds 4 points to every student who scored below the mean, will the new mean be at least 70? Answer "yes" or "no".
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About This Question
This is Neco 2021 Data Processing Question 34. It is one of the objective questions from the 2021 Neco Data Processing examination.
Difficulty level: Medium .
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