What is the Median of the frequency distribution?
Statement (I): The Arithmetic Mean of the frequency distribution is 25.
Statement (II): The Mode of the frequency distribution is 28.
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Do not assume the empirical relation among mean, median and mode is exact unless specifically stated.
Statement I alone is sufficient, but Statement II alone is not sufficient.
Statement II alone is sufficient, but Statement I alone is not sufficient.
Both statements together are sufficient, but neither statement alone is sufficient.
Even both statements together are not sufficient.
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The Correct Option isD
Solution and Explanation
Concept:
Mean, median and mode are different measures of central tendency.
Knowing one or two of them generally does not determine the third exactly.
Step 1: Analyze Statement (I).
Mean = 25.
Many distributions can have mean 25 but different medians.
Statement (I) is insufficient.
Step 2: Analyze Statement (II).
Mode = 28.
Many distributions can have mode 28 but different medians.
Statement (II) is insufficient.
Step 3: Combine both statements.
Even knowing
\[
\text{Mean}=25
\]
and
\[
\text{Mode}=28,
\]
the median is not uniquely determined.
The empirical relation
\[
\text{Mode}=3(\text{Median})-2(\text{Mean})
\]
is only an approximation and cannot be used to uniquely determine the median in general.
Hence information remains insufficient.