Answer:
D
Step-by-step explanation:
(-1) + (-1) = -2... so 500 times... it would be -500.
Answer:
it will take about 1/3 of the time (10 minutes)
Step-by-step explanation:
Answer:
12xy₁₁x₃
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
Divide
by 

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.