City Guilds Model Questions Vol1 2021 Information Technology Question 41
Practice objective / multiple choice question 41 from the 2021 City Guilds Model Questions Vol1 Information Technology examination.
A school recorded the test scores of 200 students in the following frequency distribution: Score interval Frequency 0-39 20 40-49 30 50-59 50 60-69 60 70-79 30 80-100 10 (a) Determine the inter‑quartile range (IQR) of the scores, using linear interpolation within the intervals. (b) Assuming the scores within each interval are uniformly distributed, find the proportion of students who scored above the upper quartile (\(Q_{3}\)) and also scored above 70.
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About This Question
This is City Guilds Model Questions Vol1 2021 Information Technology Question 41. It is one of the objective questions from the 2021 City Guilds Model Questions Vol1 Information Technology examination.
Difficulty level: Hard .
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