Suppose that a box contains 7 cameras and that 5 of them are defective. A sample of 2 cameras is selected at random (with replacement). Define the random variable X \displaystyle {X} X X \displaystyle {X} X X \displaystyle {X} X
k \displaystyle {k} k P(X = k \displaystyle {X}={k} X = k
What is the expected value of X \displaystyle {X} X Preview Question 6 Part 7 of 7
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Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)