SOLUTION: I would appreciate if someone could show me how to do these probability homework questions. 7. Of the 100 people who were given a new sleeping aid, 30 experienced a light headach

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Question 461396: I would appreciate if someone could show me how to do these probability homework questions.
7. Of the 100 people who were given a new sleeping aid, 30 experienced a light headache, 18 experienced a reduced appetite, and 60 experienced neither side-effect. How many people experienced both a light headache and a reduced appetite?
40-30= 10 + 18= 28?
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
Use a Venn diagram.
Too many questions for one post.
No similar problems please.