Which of the following is a valid probability value? MCQ with Answer and Explanation

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Which of the following is a valid probability value?

A. 1.5

B. 2

C. 0.75

D. -0.2

Answer: Option C

Solution (By JKSSB Mock Tests)

Probability must lie between 0 and 1 inclusive. 0.75 is valid.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

If attributes A and B are positively associated, then (AB) is:

A. Greater than (A)(B)/N

B. Zero

C. Equal to (A)(B)/N

D. Less than (A)(B)/N

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Correct Answer: Option A

Explanation:
Positive association means observed joint frequency exceeds independence expectation.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Assertion (A): In any probability distribution, P(A) + P(A') = 1. Reason (R): A and A' are mutually exclusive and exhaustive events. Choose the correct option:

A. Both A and R are true, but R is not the correct explanation of A

B. Both A and R are true, and R is the correct explanation of A

C. A is false, R is true

D. A is true, R is false

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Correct Answer: Option B

Explanation:
Complementary events partition the sample space, so their probabilities sum to 1. R correctly explains A.

This question belongs to: Accountancy and Statistics Statistics

Question #3

A questionnaire that allows the respondent to write answers in his own words contains:

A. Open-ended questions

B. Multiple choice questions

C. Ranking questions

D. Closed-ended questions

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Correct Answer: Option A

Explanation:
Open-ended questions allow free expression without predefined options.

This question belongs to: Accountancy and Statistics Statistics

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