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Table 2 shows the time taken (in minutes) to complete car maintenance service in an automobile workshop. Table 2/Jadual 2 Time (in minutes)/ Frequency/ Masa

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Table 2 shows the time taken (in minutes) to complete car maintenance service in an automobile workshop. Table 2/Jadual 2 Time (in minutes)/ Frequency/ Masa (dalam minit) Kekerapan 45 - 49 2 50 -54 4 55 - 59 9 60 -64 19 65 - 69 15 70 -74 13 75 -79 8 80 - 84 6 85 - 89 4 a) Find the total number of cars in Table 2. (2) b) Based on the data in Table 2, develop the following graphs: (12) i. frequency polygon ii. histogram iii. cumulative frequency polygon ) Comments on the shape of the distribution. (2) d) Calculate the following: (19) i. mean ii. mode median iv. first quartile V. third quartile vi. Inter-quartile range [Total: 35 marks]

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