During the past week, a local medical clinic tested N individuals for two infections. If 1/3 of those tested had infection A and, of those with infection A, 1/5 also had infection B, how many individuals did not have both infection A and B?
A) N/15
B) 4N/15
C) N/5
D) 14N/15
E) 4N/5
What do you think the answer is?
A) N/15
B) 4N/15
C) N/5
D) 14N/15
E) 4N/5
What do you think the answer is?
