Answer:
R-squared is a statistical measure of how close the data are to the fitted regression line.
Step-by-step explanation:
It is also known as the coefficient of determination, or the coefficient of multiple determination for multiple regression. ... 100% indicates that the model explains all the variability of the response data around its mean.
Answer:
13
Step-by-step explanation:
5-x+6=-2
X=13
Answer:
The MAD is 1
Step-by-step explanation:
See attached picture
Answer:
(47.3, 54.1)
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
That is z with a pvalue of 
, so Z = 1.96.
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 50.7 - 3.4 = 47.3
The upper end of the interval is the sample mean added to M. So it is 50.7 + 3.4 = 54.1
The answer is (47.3, 54.1).
Answer:
2x+y s with. 3x-2y 7 one of these. 3x+2y ex) (2x-y) (3x-2y)
Step-by-step explanation:
2x+y s with. 3x-2y 7 one of these. 3x+2y ex) (2x-y) (3x-2y)
hope this helped ^^
