A data set has a mean of 50 and a standard deviation of 5. If 3 is added to each value, the new coefficient of variation is: MCQ with Answer and Explanation
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Question #1
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Which of the following measures of central tendency is based on all observations and is most affected by extreme values?
Correct Answer: Option A
Explanation:
Arithmetic mean uses every value and is pulled towards outliers.
Arithmetic mean uses every value and is pulled towards outliers.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Neonatal Mortality Rate (NMR) is a subset of:
Correct Answer: Option A
Explanation:
Infant Mortality Rate includes all deaths under 1 year; Neonatal Mortality Rate covers the first 28 days, making NMR a component of IMR, often indicating early-life healthcare quality.
Infant Mortality Rate includes all deaths under 1 year; Neonatal Mortality Rate covers the first 28 days, making NMR a component of IMR, often indicating early-life healthcare quality.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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A committee of 4 is to be selected from 5 men and 4 women. The probability that the committee has exactly 2 women is:
Correct Answer: Option C
Explanation:
Total ways C(9,4)=126. Favorable: C(4,2)×C(5,2)=6×10=60. Probability = 60/126 = 10/21.
Total ways C(9,4)=126. Favorable: C(4,2)×C(5,2)=6×10=60. Probability = 60/126 = 10/21.
This question belongs to:
Accountancy and Statistics
Statistics
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