Question
d. $2.69 e. none of the above 10. A colonoscopy is a medical procedure used to detect the early signs of 10. colorectal cancer. Colonoscopies are invasive and expensive. One journal article reports that the sensitivity of a colonoscopy at detecting cancer is 95%. which of the following interpretations are correct for this number? a, 95% of those who have colorectal cancer will test positive with a colonoscopy. b, 95% of those who get a colonoscopy will test positive for colorectal cancer. C. 95% of those who don't have colorectal cancer will test negative with a colonoscopy. d, 95% of those who get a colonoscopy will test negative for colorectal cancer. e, 95% of those who get a colonoscopy will be diagnosed correctly whether they have colorectal cancer or not.
Explanation / Answer
e is correct option.
As we are given that colonoscopy is used to select early signs of colorectal cancer. And sensivity of colonoscopy at detecting cancer is 95%. Therefore to 100 people tested it effectively detects whether there is sign if cancer or not in 95 people.
Therefore option e best suits this.