The accompanying data are the number of wins and the earned run averages (mean number of earned runs allowed per nine innings pitched) for eight baseball pitchers in a recent season. Find the equation of the regression line Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y explain why not (a) x=5 wins E Click the icon to view the table of numbers of wins and earned run average. (b) x= 10 wins (c) x= 19 wins (d) x= 15 wins
The accompanying data are the number of wins and the earned run averages (mean number of earned runs allowed per nine innings pitched) for eight baseball pitchers in a recent season. Find the equation of the regression line Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y explain why not (a) x=5 wins E Click the icon to view the table of numbers of wins and earned run average. (b) x= 10 wins (c) x= 19 wins (d) x= 15 wins
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Transcribed Image Text:The accompanving data are the number of wins and the earned run averages (mean number of earned runs allowed per nine innings pitched) for eight baseball pitchers in a recent season. Find the equation of the regression line
Then construct a scatter plot of the data and draw the regression line. Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. If the x-value is not meaningful to predict the value of y.
explain why not.
(a) x= 5 wins
E Click the icon to view the table of numbers of wins and earned run average
(b) x= 10 wins
(c) x = 19 wins
(d) x= 15 wins
%3D
- X
.....
Wins and ERA
Construct a scatter plot of the data and draw the regression line. Choose the correct graph below.
O A.
OB.
OC.
AERA
6-
AERA
6-
Q
AERA
6-
Earned run
Wins, x
average, y
4-
4.
20
2.69
18
3.22
2-
2-
2-
17
2.65
0-
0.
0-
12 18 24
12 18 24
6 12 18 24
16
3.72
Wins
Wins
Wins
14
3.77
12
4.32
(a) Predict the ERA for 5 wins, if it is meaningful. Select the correct choice below and, if necessary, fill in the answer box within your choice.
11
3.78
9
5.21
O A. y= (Round to two decimal places as needed.)
O B. It is not meaningful to predict this value of y because x = 5 is well outside the range of the original data
O C. It is not meaningful to predict this value of y because x = 5 is not an x-value in the original data.
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