3. (20 pts) Below is a set of sample data containing the ages and Depression scores...
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3. (20 pts) Below is a set of sample data containing the ages and Depression scores (0- 100, where 100 means most Depressed) of 8 people. Age DEP 18 97 51 44 34 75 22 89 60 38 76 54 28 80 49 60 a. Are these two variables related? If so, explain how they are related (to what extent and direction? HINT: use statistical evidence to support your answer) b. Predict the Depression score of a 42-year-old. c. Is this a good prediction? Why or why not (hint: use statistics to support your answer)? d. Predict the age of a person who has a Depression score of 100. 3. (20 pts) Below is a set of sample data containing the ages and Depression scores (0- 100, where 100 means most Depressed) of 8 people. Age DEP 18 97 51 44 34 75 22 89 60 38 76 54 28 80 49 60 a. Are these two variables related? If so, explain how they are related (to what extent and direction? HINT: use statistical evidence to support your answer) b. Predict the Depression score of a 42-year-old. c. Is this a good prediction? Why or why not (hint: use statistics to support your answer)? d. Predict the age of a person who has a Depression score of 100.
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