There was 33.3% error in her calculation.
Step-by-step explanation:
Approx value thought by Lauren = 100
Exact value counted = 75
Percent error = [tex]\frac{|approx-exact|}{exact}*100[/tex]
[tex]Percent\ error=\frac{|100-75|}{75}*100\\\\Percent\ error=\frac{|25|}{75}*100\\\\Percent\ error=\frac{2500}{75}\\\\Percent\ error=33.33\%[/tex]
Rounding off to nearest tenth;
Percent error = 33.3%
There was 33.3% error in her calculation.
Keywords: percentage, error
Learn more about errors at:
#LearnwithBrainly