Question

The mean value can be calculated from both ungrouped and grouped data. Which one
do you think is more accurate? Why?
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Answer 1

I think it is easy with a ungrouped to get a accurate result because in grouped data we have to do multiplication for every class there is a small possibility to make some mistake but by comparing to grouped data ungrouped data is better I think it would help you

Answer 2

Grouped data... Hope it may help u.........