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The mean of 100 observations was found to be 49. Later it was discovered that three observations recorded as 40, 20 and 50 were actually 60, 70 and 80 respectively. What is the correct mean?
This question appeared in the RPSC Prelims 2024 examination (Prelims 2024). It is Question 38 out of 150 questions in this paper.
This question was part of the RPSC Prelims 2024 (Prelims 2024). The RPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all RPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.