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2. A real estate agent collects data on recent home buyers. She records the buyer's credit score (X) and the mortgage interest rate (Y) that they are paying. She tells a colleague that credit score (X) and mortgage rate (Y) are negatively associated. This means that: (1.5 pts) a. as credit scores go up, mortgage rate go up too. b. Below average values for credit scores tend to accompany below-average values mortgage rates. c. as credit scores goes up, mortgage rates do down d. Both (a) and (b)