A questionnaire should generally begin with: MCQ with Answer and Explanation

A questionnaire should generally begin with:
A. Sensitive and personal questions
B. Leading questions
C. Simple and general questions
D. Ambiguous questions
Answer: Option C
Solution (By JKSSB Mock Tests)
Starting with simple, non‑threatening questions builds rapport and encourages the respondent to continue.

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Practice More Statistics Questions

Question #1
Assertion (A): The geometric mean is always less than or equal to the arithmetic mean for the same dataset. Reason (R): This is a consequence of the AM-GM inequality in mathematics.
A. A is true but R is false
B. A is false but R is true
C. Both A and R are true, but R is not the correct explanation of A
D. Both A and R are true, and R is the correct explanation of A

Correct Answer: Option D


Explanation:
The AM-GM inequality states that for non-negative real numbers, the arithmetic mean is always greater than or equal to the geometric mean, with equality only when all values are identical.

This question belongs to: Accountancy and Statistics Statistics
Question #2
The mode of the dataset: 5, 7, 7, 8, 9, 9, 9, 10 is:
A. 9
B. 8
C. 7
D. 10

Correct Answer: Option A


Explanation:
The mode is the value that appears most frequently; here, 9 occurs three times, more than any other value, making it the mode.

This question belongs to: Accountancy and Statistics Statistics
Question #3
If P(A)=0.7, P(B)=0.6, and the maximum possible value of P(A∩B) is 0.6, then the minimum possible value of P(A∪B) is:
A. 1.0
B. 0.8
C. 0.7
D. 0.6

Correct Answer: Option C


Explanation:
P(A∪B) = P(A)+P(B)-P(A∩B). To minimize union, maximize intersection: max=0.6. So min union = 0.7+0.6-0.6=0.7.

This question belongs to: Accountancy and Statistics Statistics