The average score of 100 students in a subject was given to be 45. At the time of scrutiny, it was found that a score of 88 was recorded as 33 by mistake. What is the corrected average score?
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0 marksStatisticsDescriptive statistics and dispersionThe arithmetic mean and its propertiesEasyabout 1 min
JNU SIS 2019 Question 31: Descriptive statistics and dispersion
Answer and worked solution
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Descriptive statistics and dispersion has come up 117 times in 6 exams since 2004.
What this question tests
This question is on The arithmetic mean and its properties, part of Descriptive statistics and dispersion in Statistics.
Computing the mean from raw and grouped data, and what changes when data are shifted, scaled or corrected.
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Question from the JNU SIS 2019 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.