MATHEMATICS · Single correct · CBSE · Mathematics · Probability · Probability
Problem
During a quality check, four factories reported the following numbers of defective bulbs:
Factory P: 18 defectives out of 240 bulbs
Factory Q: 21 defectives out of 300 bulbs
Factory R: 16 defectives out of 220 bulbs
Factory S: 12 defectives out of 180 bulbs
Arrange the factories from the highest to the lowest likelihood of producing a defective bulb.
(a) Q,P,R,S
(b) S,Q,R,P
(c) P,R,Q,S
(d) P,Q,R,S