Respuesta :
Answer:
The value of y is 89.55 at x=15 and 60.69 at x=9.
Step-by-step explanation:
The equation of best fit line is
[tex]y=4.81x+17.4[/tex]
where, y is scores of two students after x working hours.
We need to find the score after 15 and 9 hours.
Substitute x=15 in the given equation.
[tex]y=4.81(15)+17.4[/tex]
[tex]y=89.55[/tex]
Substitute x=9 in the given equation.
[tex]y=4.81(9)+17.4[/tex]
[tex]y=60.69[/tex]
Therefore, the value of y is 89.55 at x=15 and 60.69 at x=9.
Answer:
When x = 15, y = 89.55
When x = 9, y = 60.69
Step-by-step explanation:
We are given the following information n the question:
The actual line of best fit equation predict the scores based on the number of hours worked by the students.
Actual line of best fit:
[tex]y= 4.81x + 17.4[/tex]
where x is the number of hours worked and y is the predicted variable that is the scores.
We have to determine the score of students when they worked for 15 hours.
Thus, x = 15
Putting value in the equation:
[tex]y = 4.81x + 17.4\\y= 4.81(15) + 17.4 = 89.55[/tex]
Score = 89.55
We have to determine the score of students when they worked for 9 hours.
Thus, x = 9
Putting value in the equation:
[tex]y = 4.81x + 17.4\\y= 4.81(9) + 17.4 = 60.69[/tex]
Score = 60.69
