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An inspector found that 4 out of 116 parts were defective. What percent of the parts were defective?
A. 3.45%
B. 29%
C. 26.1%
D. 3.03%

Respuesta :

mrinconj
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:

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.