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Finding the Median from Cumulative Frequency Polygon

Finding the Median from Cumulative Frequency Polygon. Enter. There are 80 Form 2 students with short-sightedness. Try to find out the median of their short-sightedness level. What is the median of their short-sightedness level?. 80. 70. 60. Cumulative Frequency (No. of Person). 50. 40.

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Finding the Median from Cumulative Frequency Polygon

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  1. Finding the Median from Cumulative Frequency Polygon Enter

  2. There are 80 Form 2 students with short-sightedness. Try to find out the median of their short-sightedness level. What is the median of their short-sightedness level? 80 70 60 Cumulative Frequency (No. of Person) 50 40 30 20 10 0 100 200 300 400 500 600 700 800 Degree (°) Short-sightedness Level of 80 Form 2 Students

  3. The median degree of their short-sightedness is 340°. The median can be found at the 40th student. 80 70 40th 60 Cumulative Frequency (No. of Person) 340 degree 50 40 30 20 10 0 100 200 300 400 500 600 700 800 Degree (°) Short-sightedness Level of 80 Form 2 Students Median = Next question

  4. There are 100 Form 1 students. Try to find out the median of their daily study time. 100 90 Where is the median of the daily study time of the 100 students? 80 70 60 Cumulative Frequency(No. of Person) 50 40 30 20 10 0 30 40 60 70 80 90 110 120 20 50 100 Minutes Daily Study Time of 100 Form 1 Students

  5. 100 Cumulative Frequency(No. of Person) The median is 54 minutes. 90 80 The median of their daily study time can be found at the 50th student. 70 60 50 40 30 50th 20 10 0 30 40 60 70 80 90 110 120 20 50 100 Minutes 54 Minutes Daily Study Time of 100 Form 1 Students Median = Next question

  6. Cumulative Frequency (No. of Person) There are 40 students in Form 2A. Find out the median of their results in the Mathematics test. Where is the median? 40 35 30 Marks 25 20 15 10 5 0 70 80 90 100 40 50 60 Results of Mathematics Test of 40 Form 2A Students

  7. Cumulative Frequency (No. of Person) The median is 55 marks. Since there are 40 students in Form 2A, the median can be found at the 20th student. 40 35 20th 30 Marks 25 55 marks 20 15 10 5 0 70 80 90 100 40 50 60 Results of Mathematics Test of 40 Form 2A Students Median = Next question

  8. 45 Cumulative Frequency (No. of Person) There are 40 employees in this company. Try to find out the median of their salary. 40 Where is the median? 35 30 25 20 15 10 5 0 15000 17000 19000 21000 23000 25000 Salary (Dollars) Salary of 40 Employees of Tai Yat Company

  9. 45 Cumulative Frequency (No. of Person) 40 35 The median is 18400 dollars. 30 Since there are 40 employees in this company, the median of their salary can be found at the 20th employee. 25 20 15 20th 10 5 0 15000 17000 19000 21000 23000 25000 Salary (Dollars) $18400 Salary of 40 Employees of Tai Yat Company Median = Continue

  10. The End

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