Mathematics, 19.12.2019 02:31 jenni8664
Suppose iq scores were obtained from randomly selected twins. for 20 such pairs of people, the linear correlation coefficient is 0.897 and the equation of the regression line is modifyingabove y with caret equals 10.27 plus 0.88 x, where x represents the iq score of the twin born second. also, the 20 x values have a mean of 100.11 and the 20 y values have a mean of 98.1. what is the best predicted iq of the twin born first, given that the twin born second has an iq of 90? use a significance level of 0.05.
Answers: 3
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