If two events are exhaustive, then: MCQ with Answer and Explanation

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If two events are exhaustive, then:

A. A and B are independent

B. P(A∪B) = 1

C. P(A) = P(B)

D. P(A∩B) = 0

Answer: Option B

Solution (By JKSSB Mock Tests)

Exhaustive events cover the entire sample space.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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In a binomial experiment, if n=1, the distribution is called:

A. Poisson

B. Normal

C. Exponential

D. Bernoulli

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Correct Answer: Option D

Explanation:
A single trial with two outcomes is a Bernoulli trial.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Which measure of central tendency is the most stable from sample to sample?

A. Mean

B. Median

C. Mode

D. None

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Correct Answer: Option A

Explanation:
The arithmetic mean is based on all observations and has the smallest sampling variance among unbiased estimators of the population mean.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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For attributes, the class frequency (α) denotes:

A. Number not possessing A

B. Number possessing A

C. Total frequency

D. Number possessing both A and B

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Correct Answer: Option A

Explanation:
(α) is the number of items that lack attribute A.

This question belongs to: Accountancy and Statistics Statistics

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