How well does the number of beers a student drinks predict his or her blood alcohol content? Sixteen student volunteers at The Ohio State University drank a randomly assigned number of cans of beer. Thirty minutes later, a police officer measured their blood alcohol content (BAC). A scatterplot of the data appears below. A plausible value of the correlation between number of beers and blood alcohol content, based on the scatterplot, is
A) r = -0.85.
B) r = -0.3.
C) r close to 0.
D) r = 0.3.
E) r = 0.85.

Question

How well does the number of beers a student drinks predict his or her blood alcohol content? Sixteen student volunteers at The Ohio State University drank a randomly assigned number of cans of beer. Thirty minutes later, a police officer measured their blood alcohol content (BAC). A scatterplot of the data appears below.  A plausible value of the correlation between number of beers and blood alcohol content, based on the scatterplot, is
A) r = -0.85. 
B) r = -0.3. 
C) r close to 0. 
D) r = 0.3. 
E) r = 0.85.

Quizplus · Accepted Answer

The Answer is E

How Well Does the Number of Beers a Student Drinks