Consider Exercise 2.58 on page 79. Can it be said that the ratings given by the two

Question:

Consider Exercise 2.58 on page 79. Can it be said that the ratings given by the two experts are independent? Explain why or why not.

Exercise 2.58

Two tire-quality experts examine stacks of tires and assign a quality rating to each tire on a 3-point scale. Let X denote the rating given by expert A and Y denote the rating given by B. The following table gives the joint distribution for X and Y.

f (x, y) 0.05 0.02 0.10 0.10 0.35 0.05 3 0.03 0.10 0.20

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...