The line graph shows the amount of petrol in a car’s tank.
How much petrol was initially in the tank?
What happened at $9$9am and $1$1pm?
How much petrol was used between $1$1pm and $5$5pm?
To the nearest hour, when did the petrol in the tank first fall below $18$18 litres?
Plan and conduct investigations using the statistical enquiry cycle:– determining appropriate variables and data collection methods;– gathering, sorting, and displaying multivariate category, measurement, and time-series data to detect patterns, variations, relationships, and trends;– comparing distributions visually;– communicating findings, using appropriate displays.