QUESTION 1 (10 Marks) State whether the data from the following statements is nominal, ordinal, interval or ratio levels

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Question 1 10 Marks State Whether The Data From The Following Statements Is Nominal Ordinal Interval Or Ratio Levels 1 (61.72 KiB) Viewed 34 times

QUESTION 1 (10 Marks) State whether the data from the following statements is nominal, ordinal, interval or ratio levels of measurement. a) The weight of fish at a market. b) Shoe size. c) The top eight bestselling car models in Malaysia. d) The distances jumped by athletes in the long-jump event. e) The ranking of football teams by FIFA. QUESTION 2 (20 Marks) The following data represents the weight of a group of 12 randomly selected pupils in a secondary school. 40,35,29,43,41,38,32,30,38,25,38,40 Calculate the following: a) mean b) mode c) median d) standard deviation e) variance f) skewness QUESTION 3 (20 Marks) A company manufactures an electronic device to be used in a very wide temperature range. The company knows that increased temperature shortens the life time of the device. The following data is found. a) Calculate the correlation coefficient using the data given in the table above and interpret the value. b) Find the regression equation. c) Based on the regression equation, estimate the life time of the device when the temperature used is 65□C.