Answer:
-1/4
Step-by-step explanation:
We can find the slope of the line given two points
m = (y2-y1)/(x2-x1)
= (-9- -6)/(3- -9)
= (-9+6)/(3+9)
=-3/12
= -1/4
Answer:
(A) (7,-4) (B) (-7,4)
Step-by-step explanation:
Answer:
The equation of the least-squares regression line for predicting height from knee height is .
Step-by-step explanation:
Given any collection of pairs of numbers, there always exists exactly one straight line that fits the data better than any other, in the sense of minimizing the sum of the squared errors. It is called the least squares regression line.
The slope-intercept form of a line is
where b is the slope of the line and a is the y-intercept.
We have the following data
To find the equation of the regression line you must:
Step 1: Find and as it was done in the table below.
Step 2: Find the sum of every column.
Step 3: Use the following equations to find a and b
Step 4: Substitute a and b in the regression equation formula