Suppose iq scores were obtained from randomly selected siblings. for 20 such pairs of people, the linear correlation coefficient is 0.912 and the equation of the regression line is modifyingabove y with caret equals negative 12.25 plus 1.13 x, where x represents the iq score of the younger child. also, the 20 x values have a mean of 98.01 and the 20 y values have a mean of 98.5. what is the best predicted iq of the older child, given that the younger child has an iq of 107? use a significance level of 0.05. click the icon to view the critical values of the pearson correlation coefficient r.

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation