In attribute theory, consistency of data requires that all ultimate class frequencies are: MCQ with Answer and Explanation
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Question #1
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If (A)=60, (B)=50, N=100, the maximum possible value of (AB) is:
Correct Answer: Option A
Explanation:
(AB) cannot exceed the smaller of (A) and (B), hence 50.
(AB) cannot exceed the smaller of (A) and (B), hence 50.
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Accountancy and Statistics
Statistics
Question #2
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Which index number is known as 'ideal'?
Correct Answer: Option D
Explanation:
Fisher's index is called ideal because it satisfies time reversal and factor reversal tests.
Fisher's index is called ideal because it satisfies time reversal and factor reversal tests.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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The combined mean of two groups with means 40 (size 10) and 60 (size 20) is:
Correct Answer: Option D
Explanation:
Combined mean = (10×40 + 20×60) / (10+20) = (400 + 1200) / 30 = 1600 / 30 ≈ 53.33. This weights each group's mean by its sample size.
Combined mean = (10×40 + 20×60) / (10+20) = (400 + 1200) / 30 = 1600 / 30 ≈ 53.33. This weights each group's mean by its sample size.
This question belongs to:
Accountancy and Statistics
Statistics
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