The following data represent the calories and sugar, in grams, of various breakfast cereals. a. Compute the covariance. Product Calories Sugar D 7.7 A 230 B 300 (Round to three decimal places as needed.) 3.0 27.1 C 400 D b. Compute the coefficient of correlation 23,9 21.7 470 490 500 F 19.6 r= 570 21.4 (Round to three decimal places as needed.) c. Which do you think is more valuable in expressing the relationship between calories and sugar-the covariance or the coefficient of correlation? Explain. Use the data above to complete parts (a) through (d). O A. The covariance is more valuable. It is an exact measure of the strength of a linear relationship. O B. The covariance is more valuable. It is not susceptible to the negative effects of lurking variables. O C. The correlation is more valuable. It can be used to determine the relative strength of a linear relationship. O D. The correlation is more valuable. It is the better measure for positive relationships d. What conclusions can you reach about the relationship between calories and sugar? O Time Remaining: 00:58:45 Next View instructor tip 6:08 PM 76°F 2/17/2022 18 P Type here to search 运
The following data represent the calories and sugar, in grams, of various breakfast cereals. a. Compute the covariance. Product Calories Sugar D 7.7 A 230 B 300 (Round to three decimal places as needed.) 3.0 27.1 C 400 D b. Compute the coefficient of correlation 23,9 21.7 470 490 500 F 19.6 r= 570 21.4 (Round to three decimal places as needed.) c. Which do you think is more valuable in expressing the relationship between calories and sugar-the covariance or the coefficient of correlation? Explain. Use the data above to complete parts (a) through (d). O A. The covariance is more valuable. It is an exact measure of the strength of a linear relationship. O B. The covariance is more valuable. It is not susceptible to the negative effects of lurking variables. O C. The correlation is more valuable. It can be used to determine the relative strength of a linear relationship. O D. The correlation is more valuable. It is the better measure for positive relationships d. What conclusions can you reach about the relationship between calories and sugar? O Time Remaining: 00:58:45 Next View instructor tip 6:08 PM 76°F 2/17/2022 18 P Type here to search 运
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:The following data represent the calories and sugar, in grams, of various breakfast cereals.
Product
Calories
a. Compute the covariance.
Sugar
7.7
230
300
3.0
(Round to three decimal places as needed.)
400
27.1
23,9
21.7
19.6
470
b. Compute the coefficient of correlation.
490
500
570
21.4
(Round to three decimal places as needed.)
Use the data above to complete parts (a) through (d).
c. Which do you think is more valuable in expressing the relationship between calories and
sugar-the covariance or the coefficient of correlation? Explain.
O A. The covariance is more valuable. It is an exact measure of the strength of a linear
relationship.
O B. The covariance is more valuable. It is not susceptible to the negative effects of lurking
variables.
OC. The correlation is more valuable. It can be used to determine the relative strength of a
linear relationship.
O D. The correlation is more valuable. It is the better measure for positive relationships.
d. What conclusions can you reach about the relationship between calories and sugar?
View instructor tip
O Time Remaining: 00:58:45
Next
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76°F
O Type here to search
2/17/2022
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