When Sam goes to a restaurant, he always tips the server $2 plus 10% of the cost
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When Sam goes to a restaurant, he always tips the server $2 plus 10% of the cost of the meal. If Sam’s distribution of meal costs has a mean of $9 and a standard deviation of $3, what are the mean and standard deviation of the distribution of his tips?
(a) $2.90, $0.30
(b) $2.90, $2.30
(c) $9.00, $3.00
(d) $11.00, $2.00
(e) $2.00, $0.90
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