The harmonic mean of speeds 30 km/h and 60 km/h for equal distances is: MCQ with Answer and Explanation
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Question #1
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In data compilation, the process of arranging raw data into categories based on shared characteristics is called:
Correct Answer: Option C
Explanation:
Classification is the systematic arrangement of data into homogeneous groups based on common attributes, which is a prerequisite for meaningful tabulation and analysis.
Classification is the systematic arrangement of data into homogeneous groups based on common attributes, which is a prerequisite for meaningful tabulation and analysis.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Life expectancy at birth in India (2014-18) is approximately:
Correct Answer: Option A
Explanation:
As per SRS 2014-18, life expectancy at birth was 69 years (male 68.2, female 70.7).
As per SRS 2014-18, life expectancy at birth was 69 years (male 68.2, female 70.7).
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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If in a moderately skewed distribution mean = 30 and median = 28, the empirical mode is approximately:
Correct Answer: Option A
Explanation:
Using the empirical relation: Mode ≈ 3Median - 2Mean = 3×28 - 2×30 = 84 - 60 = 24.
Using the empirical relation: Mode ≈ 3Median - 2Mean = 3×28 - 2×30 = 84 - 60 = 24.
This question belongs to:
Accountancy and Statistics
Statistics
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