QUESTIONS REMAINING - For people that really do have the allergy, a test says "Yes" 80% of the time - For people that do not have the allergy, a test says "Yes" 10% of the time ("false positive") Here it is in a table: Test says "Yes" Test says "No" Have allergy 80% 20% "False Negative" Don't have it 10% "False Positive" 90% If 1000 people are tested and 1% have the allergy: How many people who had the allergy tested that they did not? (False Negative) How many people who did not have the allergy tested that they did not? (True Negative) Therefore, how many people tested negative