The data given is the expected points for a football team with first down and 10 yards to go from various points on the field. In the given table, x stands for the number of yards from the goal and y stands for the y 6.041 y 1.538 10. 55 15 4.572 65 0.923 0.236 - 0.637 - 1.245 = 33,250, y = 20.798, 25 3.721 75 expected points. (Note: x = Ey? = 92.661782, Exy = 404.21.) x 500, 35 3.167 85 45 2.482 95 a. Calculate the coefficient of correlation. Does there appear to be a linear correlation? b. Find the equation of the least squares line. c. Use the answer from part (b) to predict the expected points when a team is at the 50-yd line. a. The coefficient of correlation r is (Do not round until the final answer. Then round to three decimal places as needed.) Does there appear to be a linear correlation? A. No, there is no linear correlation between the data points. B. Yes, the data points show linear correlation. b. The equation of the least squares line is Y = (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.) c. When a team is at the 50-yd line, the expected points will be points. (Type an integer or decimal rounded to two decimal places as needed.)
The data given is the expected points for a football team with first down and 10 yards to go from various points on the field. In the given table, x stands for the number of yards from the goal and y stands for the y 6.041 y 1.538 10. 55 15 4.572 65 0.923 0.236 - 0.637 - 1.245 = 33,250, y = 20.798, 25 3.721 75 expected points. (Note: x = Ey? = 92.661782, Exy = 404.21.) x 500, 35 3.167 85 45 2.482 95 a. Calculate the coefficient of correlation. Does there appear to be a linear correlation? b. Find the equation of the least squares line. c. Use the answer from part (b) to predict the expected points when a team is at the 50-yd line. a. The coefficient of correlation r is (Do not round until the final answer. Then round to three decimal places as needed.) Does there appear to be a linear correlation? A. No, there is no linear correlation between the data points. B. Yes, the data points show linear correlation. b. The equation of the least squares line is Y = (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.) c. When a team is at the 50-yd line, the expected points will be points. (Type an integer or decimal rounded to two decimal places as needed.)
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
100%
Transcribed Image Text:partners. This explains the strange phenomenon observed in part (a).
The data given is the expected points for a football team with first down
and 10 yards to go from various points on the field. In the given table, x|
stands for the number of yards from the goal and y stands for the
y
y
6.041
10.
55
1.538
15
4.572
65
0.923
x= 500, x2 = 33,250, y = 20.798,
3.721
0.236
25
75
expected points. (Note:
- 0.637
- 1.245
35
3.167
85
xy = 404.21.)
45
2.482
95
a. Calculate the coefficient of correlation. Does there appear to be a linear correlation?
b. Find the equation of the least squares line.
c. Use the answer from part (b) to predict the expected points when a team is at the 50-yd line.
a. The coefficient of correlation r is
(Do not round until the final answer. Then round to three decimal places as needed.)
teb lo
Does there appear to be a linear correlation?
A. No, there is no linear correlation between the data points.
B. Yes, the data points show linear correlation.
b. The equation of the least squares line is Y =
(Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.)
c. When a team is at the 50-yd line, the expected points will be
points.
(Type an integer or decimal rounded to two decimal places as needed.)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 5 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman