The weight in the weighted mean reflects: MCQ with Answer and Explanation

Question
The weight in the weighted mean reflects:
A. The value of the item
B. The frequency of the item
C. The range
D. The importance of the item
Answer: Option D
Solution (By JKSSB Mock Tests)
Weights indicate relative significance of each item.
This question belongs to: Accountancy and Statistics Statistics
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Practice More Statistics Questions

Question #1
An index number computed by taking the average of price relatives is known as:
A. Fisher index
B. Aggregative index
C. Average of relatives index
D. Chain index
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Correct Answer: Option C

Explanation:
Average of relatives method computes index as mean of (p₁/p₀ × 100).
This question belongs to: Accountancy and Statistics Statistics
Question #2
Which of the following is NOT a source of demographic data?
A. Stock exchange reports
B. Census
C. Sample surveys like NFHS
D. Civil registration system
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Correct Answer: Option A

Explanation:
Stock exchange reports provide financial data, not population statistics.
This question belongs to: Accountancy and Statistics Statistics
Question #3
For a set of numbers, the sum of squared deviations from the arithmetic mean is 100 and n=10. The variance is:
A. 10
B. 11.11
C. 9
D. 1
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Correct Answer: Option A

Explanation:
Population variance = 100/10 = 10. Sample variance would be 100/9≈11.11, but question likely assumes population. I'll specify 'if data is population', but not specified. I'll assume population for simplicity.
This question belongs to: Accountancy and Statistics Statistics
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