Question 2 The frequency distribution below summarises the petrol consumption of a model of car randomly chosen for a test. It shows the petrol consumption (in litres) per 100 km travelled of the cars. Petrol (in litre) Number of Cars 10 to less than 12 24 12 to less than 14 40 14 to less than 16 16 to less than 18 54 18 to less than 20 34 n=200 (a) Compute the mean and standard deviation for the above set of sample data. [10 marks] (b) Determine the mode and the median consumption of the sampled cars. [10 marks] 48