one of the 400 students , 165 likes tea only , 120 likes coffee only , and the remaining like both . if a student is chosen at random , what is the probability That he likes (a). tea only (b) both tea and coffee
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5
A)=165/400
B)=115/400
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12
Answer:
- 165/400= 33/80
- 124/400= 31/100
Step-by-step explanation:
1. probability = students who like only tea÷ total students. 165/400= 33/80
2.probability= students who like both coffee and tea÷total students. 400-(165+120) =400-285= 124.... 124/400= 31/100
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