Answer:
20% (It was a low-side guess.)
Step-by-step explanation:
To figure out percent error use this formula: [tex]\frac{O-T}{T}[/tex] (O is the observed value, T is the true value.)
(2.8 - 3.5)/3.5 (Subtract 3.5 from 2.8)
-0.7/3.5 (Divide -0.7 by 3.5)
-0.2 = -20% = 20% error (low-side)
