There are 600 customers in the data, and 326 with Buyer=NO, 274 with Buyer=YES. After association rule analysis, you find the following rule and its support and lift: Children=1 → Buyer=YES, Support = 0.183, Lift = 1.784 Assume the cost of sending marketing materials to a customer is $2. If you send to 50 customers with Children=1, what is the expected cost savings per buyer compared to sending to 50 randomly selected customers?

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