Question 1
Answer the question using the value of r and the given best-fit line on the scatter diagram.
The scatter diagram and best-fit line show the data for the price of a stock (y) and U.S. employment (x). The correlation coefficient r is 0.8. Predict the stock price for an employment value of 5.
◦ 4.9
◦ 5.9
◦ 7
◦ No valid prediction is possible.
Question 2
Answer the question using the value of r and the given best-fit line on the scatter diagram.
The scatter diagram and best-fit line show the data for the price of a stock (y) and U.S. employment (x). The correlation coefficient r is 0.8. Predict the stock price for an employment value of 11.
◦ 8
◦ 9.8
◦ 9
◦ No valid prediction is possible.