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Can someone please help with the chart I'm so confused MDM4U1 PartC-THINKING [10 4. A car dealership records the fuel consumption {litres per 100 km}

Can someone please help with the chart I'm so confused

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MDM4U1 PartC-THINKING [10 4. A car dealership records the fuel consumption {litres per 100 km} of 18 of 100 vehicles on its lot. a] Determine the mean and standard deviation. {4 marks} Use the population formulas! b] What percent of the data lie within two standard deviations of the mean? [2 marks}

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