Which of the following is a demographic characteristic? MCQ with Answer and Explanation

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Which of the following is a demographic characteristic?

A. Income

B. Occupation

C. Age

D. Education

Answer: Option C

Solution (By JKSSB Mock Tests)

Age, sex, marital status are core demographic characteristics.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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A card is drawn from a pack of 52 cards. The probability that it is a king or a queen is:

A. 4/13

B. 1/13

C. 1/26

D. 2/13

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Correct Answer: Option D

Explanation:
4 kings + 4 queens = 8 favorable. Probability = 8/52 = 2/13.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The probability of an event A is 0.2. The odds in favor of A are:

A. 1:4

B. 4:1

C. 1:5

D. 5:1

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Correct Answer: Option A

Explanation:
Odds = P(A) : P(A') = 0.2 : 0.8 = 1:4.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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The concept of 'conditional probability' is needed when:

A. Events are mutually exclusive

B. We sum probabilities

C. We want the probability of an event given that another event has already occurred

D. Events are independent

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Correct Answer: Option C

Explanation:
Conditional probability deals with the updated probability after knowing another event has occurred.

This question belongs to: Accountancy and Statistics Statistics

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