The mean calculated for the raw data will have the exact same value as that of the corresponding grouped data.

True

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False

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Solution

The correct option is B
False

The mean calculated for the raw data will not have the exact value as that of the corresponding grouped data, because in the latter case, the midpoint of each class is taken to be the representative of every observation in the class. This is a bit of an approximation and not fully accurate.

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