- A(65, 9) and (75, 15)
- B(60, 9) and (70, 15)
- C(70, 9) and (80, 15)
- D(65, 15) and (75, 9)
Step-by-Step Solution
Mid-point of 60-70 is 65 (height 9) and of 70-80 is 75 (height 15), giving (65, 9) and (75, 15).
Answer: A) (65, 9) and (75, 15)
A teacher draws a frequency polygon over a histogram. One bar of the histogram spans 60-70 with height 9, and the next bar spans 70-80 with height 15.
What are the two mid-point coordinates joined by the polygon segment over these two bars?
Class 9Frequency PolygonsStatistics and Probability
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