A company sells light bulbs in packages of 20 and estimates that the mean number of defective light bulbs in a package is 0.4 with a standard deviation of 0.5. if a customer buys 6 oackage. What are the expected value and standard deviation of the number of defective light bulbs

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17-06-2024
Mathematics

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A company sells light bulbs in packages of 20 and estimates that the mean number of defective light bulbs in a package is 0.4 with a standard deviation of 0.5. if a customer buys 6 oackage. What are the expected value and standard deviation of the number of defective light bulbs

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