Answer:
A. 3.45%
Step-by-step explanation:
Given,
Total parts = 116,
Defective parts = 4,
Thus, the percentage of the parts that were defective
[tex]=\frac{\text{D efective parts}}{\text{Total parts}}\times 100[/tex]
[tex]=\frac{4}{116}\times 100[/tex]
[tex]=\frac{400}{116}[/tex]
[tex]=3.44827586207\%[/tex]
[tex]\approx 3.45\%[/tex]
Option A is correct.