Answer:
1) B. on, 2) D. 19.2, 3) C. 0
Step-by-step explanation:
1) The value of y according to the regression line is:
Hence, the point (8,19.2) is <em>on </em>the least-squares regression line.
2) The value of y according to the regression line is 19.2.
3) The residual is the difference between the value from the regression line and the real value. In this case, the residual value is 0.
Answer:
It's irrational
Step-by-step explanation:
the square root of 27 is equal to:
We know that 
is an irrational number (but a real number), so 
is the same.
In case we need to prove that is irrational, please leave a comment.
Since we know is a proportionality, namely a multiplier on "x", we can simply use any of those points, say hmmm let's use 10, 15,
Multiply 54 times 100 then divide by 1,762
54 times 100= 5400
5400\1,762= .03
which equals to 3%
Answer:
The top one I'm pretty sure.
