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45 of the students at u of m do neither have a tattoo nor a


1. 45% of the students at U of M do neither have a tattoo nor a body piercing (other than an ear piercing). 40% of the students at U of M have a tattoo. 30% of the students at U of M have a body piercing. One student is randomly selected, what is the probability that this student has

a. a tattoo or a body piercing?

b. a tattoo and a body piercing?

c. only a tattoo or only a body piercing?

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Basic Statistics: 45 of the students at u of m do neither have a tattoo nor a
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