According to 2011 Census, the literacy rate in India (population aged 7 and above) is: MCQ with Answer and Explanation
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Question #1
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The harmonic mean of the numbers 3, 6, 9 is:
Correct Answer: Option C
Explanation:
HM = 3 / (1/3 + 1/6 + 1/9) = 3 / ( (6+3+2)/18 ) = 3 / (11/18) = 54/11 ≈ 4.909.
HM = 3 / (1/3 + 1/6 + 1/9) = 3 / ( (6+3+2)/18 ) = 3 / (11/18) = 54/11 ≈ 4.909.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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If the crude birth rate of a country is 25 and crude death rate is 10, and net migration rate is -2 per 1000, the growth rate is:
Correct Answer: Option C
Explanation:
Growth rate = 25 - 10 + (-2) = 13 per 1000.
Growth rate = 25 - 10 + (-2) = 13 per 1000.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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In a 2×2 attribute table, if (A)=400, (B)=500, N=1000, and observed (AB)=250, the expected (AB) under independence is:
Correct Answer: Option C
Explanation:
Expected (AB) = (A)×(B)/N = 400×500/1000 = 200,000/1000 = 200. Observed 250 > 200 suggests positive association between attributes A and B.
Expected (AB) = (A)×(B)/N = 400×500/1000 = 200,000/1000 = 200. Observed 250 > 200 suggests positive association between attributes A and B.
This question belongs to:
Accountancy and Statistics
Statistics
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