1. Year 11 Mini-Assessment 13
HIGHER
Estimation

2. 79.5
80.5  
600
x 202
600 x 400 4 x
0.008 
240000
0.008 8  

3.     Smallest Gap Smallest Bridge Largest Lorry = – Gap Smallest
4.275 –
3.85  
Bridge
Lorry 
Smallest
Gap =
0.425m

4. Both upper & lower bounds give same value to this degree of accuracy
Bounds of accuracy for p: – 17.25 
Upper & lower Bounds of
at least one of p, q, r
Bounds of accuracy for q: – 1.925
Bounds of accuracy for r: – 5.05
×4.95 
Upper Bound =
for m =
×5.05 
Lower Bound =
for m = 
m = 1.3
Both upper & lower bounds give same value to this degree of accuracy 