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Question
While computing mean of grouped data, we assume that the frequencies are ______.
Options
evenly distributed over all the classes
centred at the class marks of the classes
centred at the upper limits of the classes
centred at the lower limits of the classes
Solution
While computing mean of grouped data, we assume that the frequencies are centred at the classmarks of the classes.
Explanation:
In computing the mean of grouped data, the frequencies are centred at the class marks of the classes.
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