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Question
Find the area under the frequency polygon formed using the following data
Cost of living indexNumber of weeks140−1505150−16010160−17020170−1809180−1906190−2002
Find the area under the frequency polygon formed using the following data
Cost of living indexNumber of weeks140−1505150−16010160−17020170−1809180−1906190−2002
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Solution
The correct option is B 540
The frequency polygon can be drawn as above. It can be divided into rectangles and triangles.
Finding the areas of all of them, area under the frequency polygon = 485.
540
The frequency polygon can be drawn as above. It can be divided into rectangles and triangles.
Finding the areas of all of them, area under the frequency polygon = 485.
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