A quality control technician checked a sample of 30 bulbs. Two of the bulbs were defective. If the sample was representative, find the number of bulbs expected to be defective in a case of 450.a. 36b. 45c. 30d. 24

The right answer is Option C.Step-by-step explanation:Number of bulbs of sample = 30Defective bulb = 2As the sample was representative, it means that every sample of 30 bulbs will have 2 defective bulbs.The ratio of defective bulbs to sample is 2:30Total bulbs = 450 Defective bulbs = xThe ration of total bulbs to defective bulbs x:450Therefore,[tex]2:30::x:450[/tex]Product of Mean = Product of Extremes[tex]30*x=450*2\\30x=900[/tex]Dividing both sides by 30[tex]\frac{30x}{30}=\frac{900}{30}\\x=30[/tex]30 bulbs are expected to be defective in case of 450.The right answer is Option C.Keywords: ratio, proportionLearn more about ratios at:brainly.com/question/10772025brainly.com/question/10879401#LearnwithBrainly