Sixty percent of the students at a certain schoolwear
Chapter 2, Problem 10(choose chapter or problem)
Sixty percent of the students at a certain schoolwear neither a ring nor a necklace. Twenty percentwear a ring and 30 percent wear a necklace.If one of the students is chosen randomly, what isthe probability that this student is wearing(a) a ring or a necklace?(b) a ring and a necklace?
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