The median of an ungrouped data and the median calculated when the same data is grouped are always the same. Do you think that this is a correct statement?
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This seems to be some exercise given by some teacher.
The answer is No.
In the grouped data, it is assumed that the observations within the median class are uniformly distributed, which is rarely the case. Hence the difference. I am not explaining it further as it should be thought of by the student.
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Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. ... The atom that loses the electrons becomes a positively charged ion (cation), while the one that gains them becomes a negatively charged ion (anion).
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