A company manufactures transistors in three different plants X, Y, and Z whose manufacturing methods are very similar. It is decided to inspect those transistors that are manufactures in plant X since plant X is the largest plant and statisticians are available there. In order to inspect a week's production, 100 transistors will be selected at random and tested for defects. Define the sampled population and target population. It is then decided to use the results in plant X to draw conclusions about plants Y and Z. Define the sampled and target populations.

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A: