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A geometric representation, showing the relationship between a whole and its part, is

  • A.histogram
  • B.pie chart
  • C.bar graph
  • D.pictograph

Answer: B

It is a pie chart.

A pie chart is a circle divided into sectors, each sector's angle proportional to the part it represents (part/whole × 360°). It therefore shows at a glance how a whole is split into its parts, for example how a family's income is spent.

A bar graph and a pictograph compare separate quantities side by side, and a histogram shows the frequencies of a grouped continuous variable. None of them is designed to show parts of one whole.

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