Find the regression equation. Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. Hours spent studying, x Test score, y 0 2 2 4 5 6 39 45 51 49 63 68 (a) x = 2 hours (c) x = 12 hours (b) x = 2.5 hours (d) x 3.5 hours y = x + (D ☐ x + (☐ (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Choose the correct graph below. A. B. Test score 0 80- 0 Π 8 Test score 80- 0- 0 Hours studying Hours studying (a) Predict the value of y for x = 2. Choose the correct answer below. A. 47.2 B. 49.5 C. 54.0 D. not meaningful (b) Predict the value of y for x = 2.5. Choose the correct answer below. A. 54.0 B. 49.5 C. 92.9 8 Test score 80- 0- 0 ✓ 8 Hours studying O Test score 0- D. 80- 8 Hours studying C. 54.0 D. not meaningful (b) Predict the value of y for x = 2.5. Choose the correct answer below. A. 54.0 B. 49.5 C. 92.9 D. not meaningful (c) Predict the value of y for x = 12. Choose the correct answer below. A. 47.2 B. 92.9 C. 49.5 D. not meaningful (d) Predict the value of y for x = 3.5. Choose the correct answer below. A. 47.2 B. 54.0 C. 92.9 D. not meaningful
Find the regression equation. Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below. Hours spent studying, x Test score, y 0 2 2 4 5 6 39 45 51 49 63 68 (a) x = 2 hours (c) x = 12 hours (b) x = 2.5 hours (d) x 3.5 hours y = x + (D ☐ x + (☐ (Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.) Choose the correct graph below. A. B. Test score 0 80- 0 Π 8 Test score 80- 0- 0 Hours studying Hours studying (a) Predict the value of y for x = 2. Choose the correct answer below. A. 47.2 B. 49.5 C. 54.0 D. not meaningful (b) Predict the value of y for x = 2.5. Choose the correct answer below. A. 54.0 B. 49.5 C. 92.9 8 Test score 80- 0- 0 ✓ 8 Hours studying O Test score 0- D. 80- 8 Hours studying C. 54.0 D. not meaningful (b) Predict the value of y for x = 2.5. Choose the correct answer below. A. 54.0 B. 49.5 C. 92.9 D. not meaningful (c) Predict the value of y for x = 12. Choose the correct answer below. A. 47.2 B. 92.9 C. 49.5 D. not meaningful (d) Predict the value of y for x = 3.5. Choose the correct answer below. A. 47.2 B. 54.0 C. 92.9 D. not meaningful
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 5PPS
Related questions
Question
Transcribed Image Text:Find the regression equation.
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significant correlation.) Then use the
regression equation to predict the value of y for each of the given x-values, if meaningful. The number of hours 6 students spent for a test and their scores on that test are shown below.
Hours spent studying, x
Test score, y
0
2
2
4
5
6
39
45
51
49
63
68
(a) x = 2 hours
(c) x = 12 hours
(b) x = 2.5 hours
(d) x 3.5 hours
y = x + (D
☐ x + (☐
(Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.)
Choose the correct graph below.
A.
B.
Test score
0
80-
0
Π
8
Test score
80-
0-
0
Hours studying
Hours studying
(a) Predict the value of y for x = 2. Choose the correct answer below.
A. 47.2
B. 49.5
C. 54.0
D. not meaningful
(b) Predict the value of y for x = 2.5. Choose the correct answer below.
A. 54.0
B. 49.5
C. 92.9
8
Test score
80-
0-
0
✓
8
Hours studying
O
Test score
0-
D.
80-
8
Hours studying
Transcribed Image Text:C. 54.0
D. not meaningful
(b) Predict the value of y for x = 2.5. Choose the correct answer below.
A. 54.0
B. 49.5
C. 92.9
D. not meaningful
(c) Predict the value of y for x = 12. Choose the correct answer below.
A. 47.2
B. 92.9
C. 49.5
D. not meaningful
(d) Predict the value of y for x = 3.5. Choose the correct answer below.
A. 47.2
B. 54.0
C. 92.9
D. not meaningful
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