Mathematics for IGCSE & O level - Limits Of Accuracy (Section 1 - No. 22)
A measurement is given as 26 cm to the nearest centimetre. What is the lower bound of the interval?
25 cm
25.5 cm
26 cm
26.5 cm
Vysvětlení
The lower bound is the value that when rounded up would give the stated measurement. The measurement is to the nearest cm, so the lower bound is 26 - 0.5 = 25.5 cm.