In a frequency distribution, if the mean is 50, median is 48, and mode is 45, the distribution is likely: MCQ with Answer and Explanation
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Question #1
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If the number of observations possessing A is 70, B is 60, and AB is 50, then the number possessing neither is 20. The data are:
Correct Answer: Option D
Explanation:
Check all ultimate classes: (AB)=50, (Aβ)=70-50=20, (αB)=60-50=10, (αβ)=20. Sum=50+20+10+20=100, all non-negative. Consistent.
Check all ultimate classes: (AB)=50, (Aβ)=70-50=20, (αB)=60-50=10, (αβ)=20. Sum=50+20+10+20=100, all non-negative. Consistent.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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In the Theory of Attributes, an attribute whose presence is denoted by a capital letter (e.g., A) is called a:
Correct Answer: Option A
Explanation:
Positive attributes denote the presence of a characteristic and are traditionally represented by capital letters.
Positive attributes denote the presence of a characteristic and are traditionally represented by capital letters.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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For a perfectly symmetrical distribution, the mean, median, and mode are:
Correct Answer: Option A
Explanation:
In a symmetric distribution, the measures of central tendency coincide.
In a symmetric distribution, the measures of central tendency coincide.
This question belongs to:
Accountancy and Statistics
Statistics
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