Question

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?

Answer 1

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

Answer: 2,875.