The temperature measured by the meteorological station at 1:00, 7:00, 13:00, and 19:00 a day is 8 degrees Celsius, 15 degrees Celsius, 24 degrees Celsius, and 17 degrees Celsius. What is the correct formula to calculate the average temperature for this day
气象站在一天的1点、7点、13点、19点，测得的温度分别是摄氏8度、15度、24度、17度．计算这天的平均气温正确的算式为多少
<gadget id="calculator">8 + 15 + 24 + 17</gadget>
<output>64</output>

<gadget id="calculator">64 / 4</gadget>
<output>16</output>

<result>16</result>