A researcher is interested in the effect of a new drug. She selects 50 patients randomly from a hospital list. The list is the: MCQ with Answer and Explanation

Question
A researcher is interested in the effect of a new drug. She selects 50 patients randomly from a hospital list. The list is the:
A. Sample unit
B. Sampling frame
C. Sample
D. Population
Answer: Option B
Solution (By JKSSB Mock Tests)
The hospital list is the sampling frame from which the sample is drawn.
This question belongs to: Accountancy and Statistics Statistics
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Practice More Statistics Questions

Question #1
Which of the following means is most appropriate to find the average rate of population growth over a decade?
A. Weighted Mean
B. Geometric Mean
C. Harmonic Mean
D. Arithmetic Mean
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Correct Answer: Option B

Explanation:
Geometric mean is the best measure for averaging ratios, percentages, and compound growth rates.
This question belongs to: Accountancy and Statistics Statistics
Question #2
When data is classified according to time (e.g., years, months, weeks), it is called:
A. Discrete classification
B. Geographical classification
C. Chronological classification
D. Conditional classification
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Correct Answer: Option C

Explanation:
Chronological classification arranges data in order of time, forming a time series.
This question belongs to: Accountancy and Statistics Statistics
Question #3
The algebraic sum of the deviations of a set of values from their arithmetic mean is always:
A. Zero
B. Positive
C. Minimum
D. Negative
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Correct Answer: Option A

Explanation:
A fundamental property of the arithmetic mean is that the sum of deviations of items from the mean is identically zero.
This question belongs to: Accountancy and Statistics Statistics
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