Equation of the regression line


Assume IQ scores were obtained from randomly chosen sibling. For 20 such pairs of people, the linear correlation is 0.917 and equation of the regression line is y=6.44+0.94x, where x shows IQ score of the younger child. Also, the 20 x values have a mean of 102.87 and the 20 y values have a mean of 103.25. What is the best predicted IQ of the older child, given that the younger child has an IQ of 107? The best predicted IQ of the older child is(Round answer to one decimal place)?

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Basic Statistics: Equation of the regression line
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