A quality controller inspected 1,000 units of a product and rejected 150 units due to defects. Approximate the empirical probability that a unit will pass the inspection.
A. 0.15%
B. 7/12
C. 1.5%
D. 3/20
To find the probability that a unit will pass the inspection, we need to calculate the proportion of units that passed the inspection out of the total number of units inspected.
Number of units that passed = 1000 - 150 = 850
Total number of units = 1000
Probability of passing the inspection = Number of units that passed / Total number of units
Probability = 850 / 1000
Probability = 0.85
Converting this to a percentage, the empirical probability that a unit will pass the inspection is approximately 85%.
Therefore, none of the provided options are correct.