Answer:
350
Step-by-step explanation:
We are given a scatter plot which t shows the number of beach visitors and the average daily temperature.
Now to find the best prediction of the number of beach visitors if the average daily temperature is 88°F
So, we will use two point slope form.
Taking two points from scatter plot :(84,225) and (92,450)
Formula : [tex]y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex](x_1,y_1)=(84,225) [/tex]
[tex](x_2,y_2)=(92,450) [/tex]
Substitute the values in the formula :
[tex]y-225=\frac{450-225}{92-84}\left(x-84\right)[/tex]
where x is the temperature
y is the number of visitors
Now to find the best prediction of the number of beach visitors if the average daily temperature is 88°F , substitute x = 88
[tex]y-225=\frac{450-225}{92-84}\left(88-84\right)[/tex]
[tex]y=337.5[/tex]
Thus According to given options 350 is the right answer
Hence the best prediction of the number of beach visitors if the average daily temperature is 88°F is 350
