Consider the following: I. Observation method can record attitudes. II. Interview method allows probing. III. Mailed questionnaire has high response rate. Which of the above is/are correct? MCQ with Answer and Explanation

Consider the following: I. Observation method can record attitudes. II. Interview method allows probing. III. Mailed questionnaire has high response rate. Which of the above is/are correct?
A. I and II only
B. II only
C. I, II and III
D. II and III only
Answer: Option B
Solution (By JKSSB Mock Tests)
Observation cannot capture attitudes; mailed questionnaire often suffers from low response rate. Interview method does allow probing.

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If (A)=80, (B)=60, N=100, and (AB)=50, the value of (Aβ) is:
A. 30
B. 10
C. 20
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Correct Answer: Option A


Explanation:
(Aβ) = (A) - (AB) = 80 - 50 = 30.

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In the theory of attributes, the consistency condition (AB) ≥ 0 is an example of:
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Correct Answer: Option C


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The geometric mean is undefined if the data contains:
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Correct Answer: Option D


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