I am trying to understand how to interpret the regression line given:
$y = -5.18 + 1.94x$ (regression line)
where $y$ is number of cold drinks sold and where $x$ is temperature
Interpret values of $a$ and $b$ in context
Interpreting $a$ in context
- To interpret $a$, I substituted $x$ (temp) as $0$.
- This tells me that $y$ (cold drinks sold) is $-5.18$. Therefore, we can interpret that when the temperature is $0$ degrees, the number of cold drinks sold is $-5.18$ (But this is impossible?)
How would I interpret $b$ in context as well?