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Four possibilities: (1) read morning (2) read evening (3) read both (4) not read both
Given not reading morning = 1/2 => read morning =1/2 not reading evening = 2/5 => read evening =3/5 read both =1/5
According to venn diagram: prob read newspaper - prob read both paper =(1/2+3/5-1/5) - 1/5 = 0.7
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Day 3: Basic Probability Puzzles #8
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Four possibilities: (1) read morning (2) read evening (3) read both (4) not read both
Given not reading morning = 1/2 => read morning =1/2 not reading evening = 2/5 => read evening =3/5 read both =1/5
According to venn diagram: prob read newspaper - prob read both paper =(1/2+3/5-1/5) - 1/5 = 0.7