If a frequency distribution has class intervals 10-20, 20-30, 30-40 and a value 30 is placed in 30-40, the classification is: MCQ with Answer and Explanation
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Question #1
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Standardized death rate is used to:
Correct Answer: Option D
Explanation:
Standardization removes the effect of age composition, enabling fair comparisons.
Standardization removes the effect of age composition, enabling fair comparisons.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Yule's coefficient of association (Q) for attributes A and B ranges between:
Correct Answer: Option D
Explanation:
Yule's Q = [(AB)(αβ) - (Aβ)(αB)] / [(AB)(αβ) + (Aβ)(αB)], which ranges from -1 (perfect negative association) to +1 (perfect positive association), with 0 indicating independence.
Yule's Q = [(AB)(αβ) - (Aβ)(αB)] / [(AB)(αβ) + (Aβ)(αB)], which ranges from -1 (perfect negative association) to +1 (perfect positive association), with 0 indicating independence.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Two events A and B are said to be mutually exclusive if:
Correct Answer: Option B
Explanation:
Mutually exclusive events cannot occur simultaneously, meaning their intersection is the empty set (probability is zero).
Mutually exclusive events cannot occur simultaneously, meaning their intersection is the empty set (probability is zero).
This question belongs to:
Accountancy and Statistics
Statistics
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