If P(A|B) > P(A), then: MCQ with Answer and Explanation

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If P(A|B) > P(A), then:

A. A and B are mutually exclusive

B. B has a negative influence on A

C. A and B are independent

D. B positively influences the probability of A

Answer: Option D

Solution (By JKSSB Mock Tests)

Conditional probability greater than unconditional indicates a positive association.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Two events are mutually exclusive if they:

A. Can occur together

B. Always occur together

C. Cannot occur together

D. Have equal probabilities

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Correct Answer: Option C

Explanation:
Mutually exclusive events have no common outcome; P(A∩B) = 0.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Which of the following mortality measures uses a standard population?

A. Age-specific Death Rate

B. Infant Mortality Rate

C. Crude Death Rate

D. Standardized Death Rate

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Correct Answer: Option D

Explanation:
Standardized death rate applies age-specific rates to a standard age distribution.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Which measure of central tendency is most affected by extreme values?

A. Median

B. Mode

C. Arithmetic mean

D. Geometric mean

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Correct Answer: Option C

Explanation:
The arithmetic mean uses all values and is pulled towards outliers.

This question belongs to: Accountancy and Statistics Statistics

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