o level mathematics limit of accuracy

Limits of Accuracy

nAny measurement we make is rounded to some degree of accuracy or otherqNearest metreqNearest litrenThe degree of rounding gives the possible values of the measurement before rounding

nWhen we calculate an area or a volume, the errors in the measurements will give an even larger error

For example, a room is

measured as 6.4 x 4.3 metres,

measured to 1 decimal place.

Calculate the Limits of

Accuracy of the area of the room

Val is in training for a 400 metre race. He states that he can run 400 metres in 44 seconds. Both of these measurements are given to two significant figures. Find his maximum speed.

Max speed =  Greatest distance

        Shortest Time