The line graph shows the amount of petrol in a car’s tank.
How much petrol was initially in the tank?
$\editable{}$ litres.
What happened at $9$9am and $1$1pm?
The driver filled the tank.
The amount of petrol being used increased.
The car was travelling at a fast speed.
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?
Approximately $\editable{}$$:$:$00$00
The graph represents the number of iTunes sales (in millions) and iPod sales (in hundreds of thousands) every 3 months between 2003 and 2007.
The graph shows the cost of sending parcels of various weight overseas.
The graph shows the parking costs over different lengths of time.
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.