- A(50, 12)
- B(40, 12)
- C(60, 12)
- D(50, 6)
Step-by-Step Solution
Class mark of and frequency = 12, so the point is (50, 12).
Answer: A) (50, 12)
A teacher in Pune recorded the daily study time (in minutes) of her Class 9 students:
Class 0-20: 4 students, 20-40: 8 students, 40-60: 12 students, 60-80: 6 students.
What point should she plot for the class 40-60 on the frequency polygon?
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