Part B: Application [24 Marks] 1. The following set of data represents the fuel consumption (litres per 100 km) of 6 cars under test conditions: 10,11,11,12,13,15 a). Determine, by hand, showing your substitutions into an appropriate formula, the value of the: [5] [2] i). mean ii). standard deviation b). Find the z-score for a fuel consumption of 12.8 (litres per 100 km). 2. For the distribution X~(6,22) determine the percent of the data that is within the given interval. a) X