Answer:
[tex]3.25\°C[/tex]
Step-by-step explanation:
we know that
To find out the mean temperature for the firs 8 days in January, adds the temperature for the firs 8 days in January and divided by the number of days (8 days)
To determine the sum of the temperatures for the firs 8 days in January, multiply the mean temperature for the 7 days in January (3°C) by 7 and add the temperature on 8th day (5°C)
so
[tex]\frac{3(7)+5}{8}=\frac{26}{8}=3.25\°C[/tex]
