A frequency distribution with open-end intervals cannot be used to compute: MCQ with Answer and Explanation

A frequency distribution with open-end intervals cannot be used to compute:
A. Quartiles
B. Arithmetic mean accurately
C. Mode
D. Median
Answer: Option B
Solution (By JKExamLibrary)
Without exact limits, the arithmetic mean cannot be calculated precisely.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error
Bayes' theorem is expressed as P(A|B) = [P(B|A) × P(A)] / P(B). Here, P(A) is called the:
A. Marginal probability
B. Posterior probability
C. Prior probability
D. Likelihood

Correct Answer: Option C


Explanation:
In Bayesian inference, P(A) is the prior probability, representing initial belief about hypothesis A before observing evidence B; P(A|B) is the updated posterior probability.

This question belongs to: Accountancy and Statistics Statistics
Question #2 Report Error
Laspeyres' price index formula uses which of the following as weights?
A. Average of base and current year quantities
B. Current year quantities
C. Base year quantities
D. Arbitrary quantities

Correct Answer: Option C


Explanation:
Laspeyres' index uses base year quantities (q0) as weights to measure price changes.

This question belongs to: Accountancy and Statistics Statistics
Question #3 Report Error
Standardized Death Rate (SDR) is calculated to:
A. Enable fair comparison of mortality between populations with different age structures
B. Increase the crude death rate
C. Focus only on infant deaths
D. Replace the need for vital registration

Correct Answer: Option A


Explanation:
SDR applies age-specific death rates to a standard population age distribution, removing the confounding effect of age composition to reveal true differences in mortality risk.

This question belongs to: Accountancy and Statistics Statistics