Marine Was a Black Labrador Retriever That Was Trained to Detect

Multiple Choice

Marine was a black Labrador retriever that was trained to detect colorectal cancer by smelling the breath of patients with cancer.In one test to determine how well this dog could detect colorectal cancer, Marine correctly identified a bag containing the breath of a patient with colorectal cancer (from about five bags, with four containing the breath of healthy subjects) in 30 out of 33 trials.What is (the sample proportion) in this situation?

A) 30
B) 33
C) 0.91
D) 0.33