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 1 2 3 Test score, y Test score 80+ 0- ** Find the regression equation. y=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. O A. O B. 0 8 Hours studying Test score 38 43 52 47 OA. 119.9 B. 46.7 C. 53.7 OD. not meaningful 80+ 4 5 5 0- 0 8 Hours studying 63 72 C. Test score 80- (a) x = 3 hours (c) x = 13 hours 0- 8 Hours studying O D. (a) Predict the value of y for x = 3. Choose the correct answer below. Test score OA. 53.7 OB. 50.2 OC. 46.7 OD. not meaningful (b) Predict the value of y for x = 2.5. Choose the correct answer below. 80- (b)x=2.5 hours (d) x = 3.5 hours 0- 0 8 Hours studying
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 1 2 3 Test score, y Test score 80+ 0- ** Find the regression equation. y=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. O A. O B. 0 8 Hours studying Test score 38 43 52 47 OA. 119.9 B. 46.7 C. 53.7 OD. not meaningful 80+ 4 5 5 0- 0 8 Hours studying 63 72 C. Test score 80- (a) x = 3 hours (c) x = 13 hours 0- 8 Hours studying O D. (a) Predict the value of y for x = 3. Choose the correct answer below. Test score OA. 53.7 OB. 50.2 OC. 46.7 OD. not meaningful (b) Predict the value of y for x = 2.5. Choose the correct answer below. 80- (b)x=2.5 hours (d) x = 3.5 hours 0- 0 8 Hours studying
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text: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 1 2
3 4 5
Test score, y
Test score
80-
0
Find the regression equation.
y = 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.
O A.
0
8
Hours studying
OA. 119.9
OB. 46.7
O C. 53.7
38 43 52 47 63 72
B.
Test score
D. not meaningful
80-
0-
0
8
Hours studying
52
O C.
Test score
(a) x = 3 hours
(c) x = 13 hours
80-
0
8
Hours studying
(a) Predict the value of y for x = 3. Choose the correct answer below.
O D.
OA. 53.7
OB. 50.2
O C. 46.7
OD. not meaningful
(b) Predict the value of y for x = 2.5. Choose the correct answer below.
Test score
80-
(b)x=2.5
hours
(d) x = 3.5
hours
0-
0
8
Hours studying
Transcribed Image Text:K
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 1
Test score, y
LO
2 3 4 5
5
OA. 119.9
OB. 50.2
OC. 53.7
O D. not meaningful
38 43 52 47 63 72
(a) x = 3 hours
(c) x = 13 hours
OA. 53.7
OB. 50.2
OC. 46.7
O D. not meaningful
(b) Predict the value of y for x = 2.5. Choose the correct answer below.
OA. 119.9
OB. 46.7
O C. 53.7
O D. not meaningful
(c) Predict the value of y for x = 13. Choose the correct answer below.
OA. 50.2
OB. 119.9
OC. 46.7
OD. not meaningful
(d) Predict the value of y for x = 3.5. Choose the correct answer below.
(b)x=2.5
hours
(d) x = 3.5
hours
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