Rather than use the two scoops of coffee recommended by the manufacturer, a coffee aficionado uses three scoops of coffee per pot. What is the relative error?

Answer: Relative error = 50%

Step-by-step explanation:

Relative error Re = Absolute error/True value * 100%

True value = 2 scoops

Measured (used) value = 3 scoops

Absolute error Ae = measured (used) value - True value

= 3 scoops - 2 scoops

Ae = 1 scoop

Re = 1/2 * 100%

Re = 50%