How Well Does the Number of Beers a Student Drinks

Multiple Choice

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. One student drank 9 beers. You see from the scatterplot that his BAC was about

A) 0.20.
B) 5)
C) 7)
D) 9)
E) 20.