Suppose that a box contains 6 cameras and that 5 of them are defective. A sample of 2 cameras is selected at random (with replacement). Define the random variable X as the number of defective cameras in the sample. Note: For to have a binomial probability distribution the sample must be with replacement, otherwise the trials are dependent. Write the probability distribution for X.
k P(X=k)
___
___
___
What is the expected value of X?