Question

A farmer is having problems with birds eating her crops
she tries putting up different numbers of scarecrows to keep
the bird away. The average number of crops eaten i 200,
and the average number of Sarechows she has put up is no
The former finds some of the linear regression equation
number of op zaten : a-0.8* (number of scaHW)
what is the value of the intercept?
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Answer 1

Answer:

The value of the intercept is a=216.

Step-by-step explanation:

We define "s" as the number of scarecrows and "C" the number of crops eaten.

The farmer finds the linear regression equation:

C=a-0.8sC=a−0.8s

We have a linear function, for which we only know the slope (m=0.8) and a point within it (when s=20, C=200).

We can find a replacing the variables C asn s with the known point (20, 200):

\begin{gathered}C=a-0.8s\\\\C(20)=a-0.8(20)=200\\\\a=200+0.8*20=200+16\\\\a=216\end{gathered}

C=a−0.8s

C(20)=a−0.8(20)=200

a=200+0.8∗20=200+16

a=216

The value of the intercept is a=216.