question archive Suppose that a box contains 8 cameras and that 3 of them are defective
Suppose that a box contains 8 cameras and that 3 of them are defective
Subject:StatisticsPrice:2.87 Bought7
Suppose that a box contains 8 cameras and that 3 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.
Hint: Make a probability tree for selecting 2 cameras without replacement.
Write the probability distribution for X.
| k | P(X=k) |
|---|---|
 |
|
|
|
|
What is the expected value of X?
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