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How do you xxplain difference between grouped and ungrouped data?
Grouped Data:Where the data you have can fit into a group for example Large, Small, 2D Shapes, 3D ShapesUnGrouped Data:Where the data you have does not fit into a group (E.g. 1cm, 4, Brown, Yellow
Median formula for grouped data?
Simple answer:Divide the total number of observations (plus 1, if small) by 2 to find the middle rank.Look at the cumulative frequencies for the grouped data and find the group in which the middle rank would appear. That is the median group.More sophisticated answer:Withing the median group, interpolate.
How do you identify group data or ungroup data in standard deviation?
You cannot. If you are told the standard deviation of a variable there is no way to tell whether that was derived from grouped or ungrouped data.
How do you do grouped data?
You define groups by selecting non-overlapping subsets of the domain which, together, cover the whole domain. For each group you combine responses for all units whose domain element (explanatory or independent variable) falls within the group.
What is a group of different parts that interact to form a whole?
A System
