To calculate Laila's average running speed, the following data should be recorded:
The distance she ran - This can be measured using a GPS device or by using a running track.
The time taken to run that distance - This can be measured using a stopwatch or a timer.
By dividing the distance by the time taken, we can calculate Laila's average running speed.
Average Speed = Distance / Time
For example, if Laila runs a distance of 5 kilometers in 30 minutes, her average running speed would be:
Average Speed = 5 km / (30/60) hr = 10 km/hr
Therefore, to calculate Laila's average running speed, we need to record the distance she ran and the time taken to run that distance.