$\"\"$

The temperature in a city modelled by the function $\"\"$ .

The time period is from $\"\"$ AM to $\"\"$ PM.

Time interval is $\"\"$ .

Average value of the function $\"\"$ on $\"\"$ is defined as $\"\"$ .

Here $\"\"$ .

Average temperature is

$\"\"$

Average value of the temperature is $\"\"$ . $\"\"$

Average value of the temperature is $\"\"$ .