The experimental probability that a unit will pass inspection can be calculated by dividing the number of units that pass inspection by the total number of units inspected.
Number of units that passed inspection = 1000 - 150 = 850
Total number of units inspected = 1000
Therefore, the experimental probability of a unit passing inspection is 850/1000 = 0.85 = 85%
The closest answer choice to this is D. 15%. However, the correct answer based on the calculations above should be D. 85%.
A quality controller inspected 1000 units of a product and rejected 150 units due to defects finally experimental probability that a unit will pass inspection.
A. 3/20
B. 0.15%
C. 17/20
D. 15%
1 answer
1 answer