Question

An inspector found that 4 out of 116 parts were defective. What percent of the parts were defective?

Answer 1

A. 3.45%
The formula for a proportion is x/n, "n" is the total of objects and "x" is the number os successes. In this case "defective" is the success because you want to know the percentage for defective parts, so 4/116= 0.0345 and you have to multiply the result by 100 and you get your answer in percentage.

Answer 2

Answer:

A. 3.45%

Step-by-step explanation:

Given,

Total parts = 116,

Defective parts = 4,

Thus, the percentage of the parts that were defective

$=\frac{\text{D efective parts}}{\text{Total parts}}\times 100$

$=\frac{4}{116}\times 100$

$=\frac{400}{116}$

$=3.44827586207\%$

$\approx 3.45\%$

Option A is correct.