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Grouped data or ungrouped data?

Exercise and reference answers

Items
  1. Item
    Divide by n, the count of observations
    Category
    Ungrouped data
  2. Item
    Each observation is listed individually
    Category
    Ungrouped data
  3. Item
    Divide by N, the total frequency
    Category
    Grouped data
  4. Item
    Each value carries a frequency fᵢ
    Category
    Grouped data
Categories
  1. Item
    Ungrouped data
  2. Item
    Grouped data

Explanation

Grouped data brings frequencies in, and the totals change accordingly. Source: syllabus Maths, Ch 13 Statistics.
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