Solved UPSC CDS/OTA Question
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Q · Statistics Easy · 45s
Two series have (mean, SD): A (50, 5) and B (70, 9). Which is more consistent?
TopicStatistics
Question Typemultiple choice
DifficultyEasy
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
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CV_A=10.0%, CV_B=12.9% ⇒ lower CV ⇒ more consistent ⇒ A.
Final Answer: Option A - Series A