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. 3/20
B. 0.15%
C. 17/20
D. 15%

Answer 1

C. 17/20

To find the experimental probability that a unit will pass inspection, you need to subtract the number of defective units from the total units inspected, then divide by the total units inspected:

(1000 - 150) / 1000 = 850 / 1000 = 17/20

Therefore, the experimental probability that a unit will pass inspection is 17/20.