Lesson 1: Correlation Example 7: Brain Size and Intelligence P 203, #21. Researchers interested in whether a person's brain size is related to mental capacity selected a sample of 20 students who had SAT scores higher than 1350 and administered an IQ test. Brain size was determined by an MRI scan. MRI MRI (d) Calculate the correlation Gender Count Ia Gender Count Female 816932 133 Male 949395 140 coefficient Female 951545 137 Male 1001121 140 separately for males Female 991305 138 and females. Do Male 1038437 139 Female 833868 132 Male 965353 133 Female 856472 140 Male 955466 133 you still believe that MRI count and IQ are linearly related? Female 852244 132 Male 1079549 141 Female 790619 135 Male 924059 135 Female 866662 130 Male 955003 139 Female 857782 133 Male 935494 141 Female 948066 133 Male 949589 144

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Q: Part a through c. Thank you!

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