Erfana Beevee Binte Hassan Shariff's answer to Troubled's Secondary 4 E Maths Singapore question.
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Your tree diagram is correct. However, you have listed 3 outcomes instead of 2. Adam and Betty choose drinks, so 2 outcomes. The third branch is not needed. For e.g.
P(adam choose orange and betty choose orange)=6/10 x 5/9=1/3
P(adam choose orange and betty choose orange)=6/10 x 5/9=1/3
Date Posted:
1 month ago
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