Based on the results from the sample, about how many microwave ovens are expected to be defective?
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A company manufactures microwave ovens. In February, a random sample of 50 microwave ovens were inspected, and 4 were found to be defective. The company manufactured 3,200 microwave ovens in February.
Based on the results from the sample, about how many microwave ovens are expected to be defective?
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