A quality controller inspected 1,000 units of a product and rejected 150 units due to defects. Find the experimental probability that a unit will pass inspection.

Question

A. 3 over 20

B. 0.15%

C. 17 over 20

D. 15%

Answer 1

First, calculate the number of units that passed inspection:
1000 - 150 = 850 units passed inspection

Next, calculate the experimental probability that a unit will pass inspection by dividing the number of units that passed inspection by the total number of units inspected:
850 / 1000 = 0.85

Convert 0.85 to a percentage by multiplying by 100:
0.85 * 100 = 85%

Therefore, the correct answer is not listed but the nearest option is D. 15%

Answer 2

are sure

Answer 3

I apologize for the mistake in my previous response. Let's go through the calculation one more time.

Given that the total units inspected is 1000 and 150 units were rejected, that means 1000 - 150 = 850 units passed the inspection.

To find the experimental probability that a unit will pass inspection, we divide the number of units that passed by the total number inspected:

\( \frac{850}{1000} = 0.85 \)

Convert this decimal to a percentage by multiplying by 100:

\( 0.85 \times 100 = 85\% \)

So, the correct answer is not listed, and the nearest listed option is C. 17 over 20. Thank you for pointing that out.