Answer:
22 hours
Step-by-step explanation:
0.5 km in 1 hr
1 km in 2 hr
11 km in 22 hr
Answer:
they don't know the correct length for ad, and they just guessed
Yesterday, the store made $10,500 in sales
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.