in a certain factory, the same type of electronic component is made using three different machines. 26% of all the components made in this factory are made on Machine 1, another 48% on Machine 2 and the remaining 26% on Machine 3.

8% of the components on Machine 1 are defective, and 10% of the components made on Machine 2 are defective. Machine 3 is of a newer design and just 4% of the components made on it are defective.