Two events are said to be exhaustive if: MCQ with Answer and Explanation

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Two events are said to be exhaustive if:

A. Their union is the entire sample space

B. They are independent

C. They have equal probabilities

D. They cannot occur together

Answer: Option A

Solution (By JKExamLibrary)

Exhaustive events cover all possible outcomes.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1 Report Error

In a frequency distribution, the number of observations falling in a class is called:

A. Class mark

B. Class limit

C. Class frequency

D. Class width

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Correct Answer: Option C

Explanation:
Class frequency is the count of data points within a particular class interval.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

If the geometric mean of two numbers is 12 and one number is 18, the other number is:

A. 10

B. 8

C. 6

D. 9

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Correct Answer: Option B

Explanation:
Geometric mean = √(x×y). Given √(18×y)=12, square both sides: 18y=144, so y=144/18=8. This uses the definition of geometric mean for two values.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Chain base index numbers are particularly useful for analyzing:

A. Short-term period-to-period fluctuations

B. Long-term structural changes

C. Base year selection

D. International comparisons

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Correct Answer: Option A

Explanation:
Chain indices highlight recent changes by using the previous period as base, making them sensitive to short-term dynamics like monthly inflation, though less suitable for long-term trend analysis.

This question belongs to: Accountancy and Statistics Statistics

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