Answer:
2.5
Step-by-step explanation:
The predicted regression equation is
y^=10+0.9x
where y= final exam score and x=first test score.
Also, we are given that Carla's final exam score y is 98 and Carla's first test score x is 95. We have to find residual for Carla.
Residual=Observed -predicted=y-y^
y^=10+0.9x
We know that Carla's first test score=x=95.
So,
y^=10+0.9(95)
y^=10+85.5
y^=95.5
Residual for Carla=y-y^=?
We know that Carla's final exam score=y=98.
So,
Residual for Carla=98-95.5=2.5
Answer:
heyyyy timmy
Step-by-step explanation:
wsp G?
Firstly, you add 3 to both sides (as you've got to eliminate the -3), and this gives you;
7a=6+6a.
Then in order to get a alone, you need to subtract 6a from the right hand side (in order to counter balance) and this gives you;
1a=6
Therefore, a is equal to 6
Hope this helps :)
Answer:
y = 5/6x + 1
Step-by-step explanation:
rise over run method:
if you count up and across from the first yellow point to the second, you get 5 up 6 across making the slope 5/6
it is positive because it goes up
the y intercept is 1
Answer:
The correct answer is multiply the first equation by -2.
Step-by-step explanation:
The reason for this is then you'd be left with the following two equations.
-6x - y = -6
6x - y = 2
If you add these two together you would cancel out the x terms.