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6.2 Concept of Mode and Mean of Grouped Data

6.2 Concept of Mode and Mean of Grouped Data . The Modal Class is the class interval that has the highest frequency. Modal Class. Highest frequency. Modal Class =. 21 – 40. State the modal class from the table below:. 30 – 34. Modal Class =. 41 – 60. Modal Class =. Midpoint of class

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6.2 Concept of Mode and Mean of Grouped Data

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  1. 6.2 Concept of Mode and Mean of Grouped Data The Modal Class is the class interval that has the highest frequency. Modal Class Highest frequency Modal Class = 21 – 40

  2. State the modal class from the table below: 30 – 34 Modal Class = 41 – 60 Modal Class =

  3. Midpoint of class = (lower limit + upper limit) Midpoint of class

  4. Midpoint of class = (lower limit + upper limit) Midpoint of class

  5. Mean Sum(value of midpoint of class x frequency class) Sum of frequency

  6. Mean = Sum(value of midpoint of class x frequency class) Sum of frequency Mean Mean = 1535 30 = 51.17 marks

  7. Question 1:From the following data, find (i) modal class(ii) mean of length

  8. Solution:(i) Modal class = (ii) Mean =

  9. Solution:(i) Modal class = 1 – 10 (ii) Mean = 995 50 = 19.9 cm

  10. Question 2:From the following data, find (i) modal class(ii) mean of height

  11. Solution:(i) Modal class = (ii) 1.66 – 1.70 Mean= 83.75 50 = 1.675 m

  12. THE END Prepared by : Mat Zaini bin Mansor SMK Seri Gunong Hesmy Hesleen A/P Eh Mengang SMK Siong, Baling Lim Wei Ling SMK Bukit Selambau Nor Hafilah Abd Rahman SMK Bandar Sg Petani Sofinar Hj Bakar SMK Langgar,Alor Star Yuhainis Baharudin SMK Seri Pantai,Kuala Kedah

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