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Suppose that a box contains 7 cameras and that 5 of them are defective. A sample of 2 cameras is selected at random. Define

Suppose that a box contains 7 cameras and that 5 of them are defective. A sample of 2 cameras is selected at random. Define the random variable X as the number of defective cameras in the sample. Write the probability distribution for X. k P(X = k) What is the expected value of X?

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