# Question

Two variables x and y have a positive association if large values of .r am associated with large values of y. Write an equivalent definition that describes what small values of x are associated with. Then write a definition for negatively associated random variables that describes what small values of y are associated with.

## Answer to relevant Questions

Explain why the predicted value 9 is always equal to 5? when r = 0. Compute the correlation coefficient between this year's unemployment and next year's unemployment. What proportion of the variance in next year's unemployment is explained by this year's inflation? If we are going to use data from this year to predict unemployment next year. why not use this year's unemployment to predict ...Start a business: Suppose that start- up companies in the area of biotechnology have probability 0.2 of becoming profitable, and that those in the area of information technology have probability 0.15 of becoming profitable. ...Use the result from Exercise 1 along with the result P( Alive at age 10) = 0.99123 to compute PPost your question

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