Answer:
a)
The correlation coefficient for this case is very near to 1 so then we can ensure that we have linear correlation between the two variables
b)
Now we can find the means for x and y like this:
So the line would be given by:
Step-by-step explanation:
Part a
The correlation coeffcient is given by this formula:
For our case we have this:
n=4
The correlation coefficient for this case is very near to 1 so then we can ensure that we have linear correlation between the two variables
Part b
Where:
With these we can find the sums:
And the slope would be:
Now we can find the means for x and y like this:
And we can find the intercept using this:
So the line would be given by:
I have a savings accout wit four dollars in it
We would need to know how many students are in the class to properly answer the question.
Answer:
sure why not
Step-by-step explanation:
Answer:
y=-8
x=-7
Step-by-step explanation:
x-2y=9 x=2y+9
3x-5y=19
3(2y+9)-5y=19
6y+27-5y=19
y+27=19
y=-8
x=2(-8)+9=-16+9=-7