Let X and Y be two discrete random variables with a joint probability distribution given by: X-1 X-2 X-3 Y-2 1 1 1 12 4 Y-4 1 1 24 12 Y=5 1 1 24 8 12 Then P(X < 2, Y < 4)= None of these 3/8 1/12 2/3

Q: What is the correct answer ? I have to show work.

A: Given Information: Sample size (n) = 22  Mean (u) = 12 Standard deviation (s) = 5.4

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Q: Solve it now

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Q: How did you get those answers?

A: Since here we have two variables p and q, they can take values True (T) and False (F) each.  So, the…

Q: Why I cannot find that answer? Can you label the answer out?

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Q: he answer is still wrong

A: Sol:-We need to use Bayes' theorem to calculate this probability.  Let A be the event that Stage 3…

Q: . Then Var(X+Y+Z) is equal to:

A: Here x , y and z are independent variables  So covariance between them are zero

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Q: answer question 4.

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Q: I need help solving this question.

A: You need to know this before solving the question.

Q: How did you figure out the answers? Can you show your work

A: Doubt: How did you figure out the answers.