IQ tests were carried out to find the relationship between age and IQ. A group of 10 people ranging from the ages of 8 to 68 was used as a sample and the results were recorded in the table below: Age 8 12 15 25 28 35 38 50 60 68 IQ 102 115 123 122 118 113 110 105 88 78 Table 3: Relationship between Age and IQ  Find Pearson’s Correlation Coefficient between age and IQ.   Find the coefficient of determination.  Given your answer above, comment on the linear association between age and IQ.

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A:

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A:

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A:

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A: Solution

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A: Solution is given:

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