Which average is strictly impossible to calculate if any of the observations in the dataset is exactly zero? MCQ with Answer and Explanation

Question
Which average is strictly impossible to calculate if any of the observations in the dataset is exactly zero?
A. Geometric Mean
B. Harmonic Mean
C. Arithmetic Mean
D. Both Geometric and Harmonic Mean
Answer: Option D
Solution (By JKSSB Mock Tests)
Geometric mean becomes zero if any value is zero, and Harmonic mean involves division by zero, making both invalid.
This question belongs to: Accountancy and Statistics Statistics
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Practice More Statistics Questions

Question #1
If a fair die is rolled twice, the probability that the first roll is a 4 and the second roll is a 5 is:
A. 1/6
B. 1/36
C. 1/18
D. 1/12
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Correct Answer: Option B

Explanation:
Independent events: (1/6)×(1/6)=1/36.
This question belongs to: Accountancy and Statistics Statistics
Question #2
Which of the following is true about WPI and CPI in India?
A. WPI covers only goods, CPI covers goods and services.
B. Both cover goods and services.
C. Both cover only goods.
D. CPI covers only goods, WPI covers goods and services.
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Correct Answer: Option A

Explanation:
WPI is limited to goods; CPI includes both goods and services.
This question belongs to: Accountancy and Statistics Statistics
Question #3
Which of the following is NOT a component of population change?
A. Inflation
B. Fertility
C. Migration
D. Mortality
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Correct Answer: Option A

Explanation:
Population change results from births, deaths, and migration; inflation is an economic concept.
This question belongs to: Accountancy and Statistics Statistics
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