The sum of deviations from the mean is always zero because: MCQ with Answer and Explanation
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Question #1
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For a dataset with extreme outliers, which measure of central tendency is LEAST affected?
Correct Answer: Option C
Explanation:
The median depends only on the middle value(s) in an ordered list, making it robust to extreme values, whereas the mean incorporates all values and can be heavily distorted by outliers.
The median depends only on the middle value(s) in an ordered list, making it robust to extreme values, whereas the mean incorporates all values and can be heavily distorted by outliers.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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If the median of a dataset is 40 and the first quartile is 30, the third quartile is 50. The interquartile range is:
Correct Answer: Option B
Explanation:
IQR = Q3 - Q1 = 50-30 = 20.
IQR = Q3 - Q1 = 50-30 = 20.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Which method of collecting primary data is most suitable when the field of investigation is highly confidential and restricted?
Correct Answer: Option C
Explanation:
Direct personal interview ensures maximum confidentiality as the investigator directly collects data without intermediaries.
Direct personal interview ensures maximum confidentiality as the investigator directly collects data without intermediaries.
This question belongs to:
Accountancy and Statistics
Statistics
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