A manufacturer makes two models of an item: model I, which accounts for  75% of unit sales, and model II, which accounts for 25% of unit sales. Because of defects, the manufacturer has to replace (or exchange)  5% of its model I and 10% of its model II. If a model is selected at random, find the probability that it will be defective. Please round the final answer to  2 or 3 decimal places. P(detective)=

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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A manufacturer makes two models of an item: model I, which accounts for 

75% of unit sales, and model II, which accounts for 25% of unit sales. Because of defects, the manufacturer has to replace (or exchange) 
5% of its model I and 10% of its model II. If a model is selected at random, find the probability that it will be defective. Please round the final answer to 
2 or 3 decimal places.
P(detective)=
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