NECO 2003 Economics · Question 44

Data presented in a circular chart is known as

Options

  1. A.circular chart
  2. B.component chart
  3. C.histogram
  4. D.pictograph
  5. E.pie chart

Answer: E. pie chart

Explanation written with AI and checked against the answer key

Step 1: Analyze the question The question asks for the name of the chart that presents data in a circular form.

Step 2: Explain the concept A pie chart is a circle divided into sectors (slices). Each slice represents a share of the whole, and the size of each slice is proportional to the value it represents. The full circle stands for 100%, or 360°.

To find the angle of each sector:

Angle = (Value ÷ Total) × 360°

Step 3: Check each option

  • A. Circular chart: This is not the standard statistical term. It only describes the shape.
  • B. Component chart: This usually refers to a component (subdivided) bar chart, which uses bars and not a circle.
  • C. Histogram: This uses adjacent rectangular bars to show a frequency distribution, so it is not circular.
  • D. Pictograph: This uses pictures or symbols to represent quantities.
  • E. Pie chart: This shows data as sectors of a circle. ✔

Step 4: Answer The correct option is E, pie chart.

Tip: Think of a pie being cut into slices. Pie = circle = slices of a whole. Also remember: bars with gaps are bar charts, bars without gaps are histograms, and pictures are pictographs.

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