NECO 2003 Economics · Question 44
Data presented in a circular chart is known as
Options
- A.circular chart
- B.component chart
- C.histogram
- D.pictograph
- 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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