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Two suppliers, A and B supply the raw material of electrical components to company, A company's manager needs to identify which is the best supplier among them. Therefore, ten parts of electrical components from each supplier were tested and the life of the products (in months) have been collected for the inspection. The data was recorded and presented in the back-to-back stem and leaf as follows: stem B 8 5 13 4 2 2 8 Key: 218 - 28 (i) Calculate the values of mean, median and mode of life of the product for both suppliers. (6 Marks) (ii) Based on the values obtained in (i). identify the type of data distribution of supplier A. (2 Marks) (iii) What is the best measure of central tendency that can be used to describe the average of data for supplier A? Give reason. (2 Marks) (iv) Calculate the standard deviation of life of product for both suppliers. (2 Marks) (v) Based on answer in (iv). which supplier is more reliable to be chosen? Justify your answer. (2 Marks)