Question 40 2 pts Data collected by a neuroscience researcher assessed the relationship between gray matter volume and average memory tests scores. Results revealed that the correlation between the volume of gray matter in the brain was positively correlated with the participants's score on the memory test (r = 0.86). (a) What is the proportionate reduction in error, or r2, for predicting average memory score from the volume of gray matter in the brain (b) Explain what this r2 means for this set of data. Edit View Insert Format Tools Table 12pt v Paragraph v B I U A v a v T2 V p Owords > If