Employees at an office were surveyed about what types of hot beverages they drank that day. It was found that 50% of them drank
coffee and 25% drank tea. The survey showed that 10% of the employees drank both coffee and tea. For these employees, are events "drank coffee" and "drank tea" mutually exclusive?
Choose one answer: Yes or No?
Find the probability that a randomly selected person from this group drank coffee OR drank tea?
First, take all the sides you already have, then add them up. (You should get 12) To find the other two sides, do some more simple addition. The 2+3+2 of the the top side add up to six (the bottom side) and sides equal each other so add another three. Total is 12+6+3=21
