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18 people were poled and 10 said they have shopped at Wal-Mart and 8 said they have shopped at Target. 4 said they shopped at both.


2. 18 people were poled and 10 said they have shopped at Wal-Mart and 8 said they have shopped at Target. 4 said they shopped at both.
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2. 18 people were poled and 10 said they have shopped at WalMart and 8 said they have shopped at Target. 4 said they shopped at both. What is the probability that the group shopped at WalMart or...

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