How Well Does the Number of Beers a Student Drinks

question 10

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. 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.

---

Definitions:

Asthma

A chronic respiratory condition characterized by airway inflammation, leading to wheezing, shortness of breath, chest tightness, and coughing.

Wheezes

A high-pitched whistling sound during breathing, often indicating obstruction or narrowing of the airways.

Ice Chip Consumption

Eating small pieces of ice, often practiced for hydration or to alleviate mouth dryness, especially in patients with nausea or who are nil by mouth postoperatively.

Urinary Output

The volume of urine excreted by the kidneys over a specified period, an important indicator of kidney and overall health.