The cumulative frequency curve is also known as: MCQ with Answer and Explanation
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Question #1
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The combined mean of two groups with n₁=20, mean₁=50 and n₂=30, mean₂=60 is:
Correct Answer: Option B
Explanation:
Combined mean = (20×50 + 30×60) / (20+30) = (1000+1800)/50 = 2800/50 = 56.
Combined mean = (20×50 + 30×60) / (20+30) = (1000+1800)/50 = 2800/50 = 56.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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The Total Fertility Rate (TFR) is expressed as:
Correct Answer: Option B
Explanation:
TFR is the average number of children a woman would have.
TFR is the average number of children a woman would have.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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The weighted harmonic mean is used in which of the following situations?
Correct Answer: Option A
Explanation:
Weighted harmonic mean is useful when the weights are in the same units as the numerator of a rate.
Weighted harmonic mean is useful when the weights are in the same units as the numerator of a rate.
This question belongs to:
Accountancy and Statistics
Statistics
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