Are People with Bigger Brains More Intelligent? Forty College Students

Multiple Choice

Are people with bigger brains more intelligent? Forty college students volunteered to participate in a study which examined brain size (measured as 1000's of pixels counted in a brain scan) , and IQ scores (measured in points) . A scatterplot of the data is shown below.
-Approximate the value of the correlation coefficient for these data.

A) 0.10
B) 0.40
C) 0.80
D) 0