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The mean temperature for the first 7 days in January was 3 °C. The temperature on the 8th day was 2 °C. What is the mean temperature for the first 8 days in January?
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The mean temperature for the first 7 days in January was 3 °C.

The temperature on the 8th day was 2 °C.
What is the mean temperature for the first 8 days in January?

User Moudrick
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m = (a_1 + a_2 + ... + a_n)/(n)\\~\\m = (3 * 7 + 2)/(8) = (21 + 2)/(8) = (23)/(8) = 2,875

Answer: 2,875.

User Ramatoulaye
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