# Probability and statistics help

• Sep 13th 2008, 08:04 PM
cb22hawk
Probability and statistics help
Hey I was wondering if someone could double check my work on this problem:

Consider a disease present in 1 in every 2 members of a population. A diagnostic test for this disease has sensitivity = specificity. Is it true that testing positive and having the disease are independent events? Justify.

Given: P(D l +)
• Sep 13th 2008, 11:10 PM
mr fantastic
Quote:

Originally Posted by cb22hawk
Hey I was wondering if someone could double check my work on this problem:

Consider a disease present in 1 in every 2 members of a population. A diagnostic test for this disease has sensitivity = specificity. Is it true that testing positive and having the disease are independent events? Justify.

Given: P(D l +)

I've double checked and triple checked and can confidently confirm that there's no work here to check.

By the way, I doubt very much that testing positive and having the disease are independent events.