O The related coefficient of determination is 0.1 O All of the other answers are true O Only 10% of the variation of the ice-cream sales is explained by different outdoor temperatures. O c in the linear regression mode Y = b + cX is positive O 90% of the variation of the ice-cream sales is due to the variance of the sales itself.

O The related coefficient of determination is 0.1 O All of the other answers are true O Only 10% of the variation of the ice-cream sales is explained by different outdoor temperatures. O c in the linear regression mode Y = b + cX is positive O 90% of the variation of the ice-cream sales is due to the variance of the sales itself.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question 27

In March, Maggie collected the daily sales of ice-cream in Montreal (Y) and the outdoor temperature for each day (X). She computed the sample correlation coefficient between X and Y to be 0.1, and used the data to build a simple linear regression model Y = b + cX.

O The related coefficient of determination is 0.1
O All of the other answers are true
O Only 10% of the variation of the ice-cream sales is explained by different outdoor temperatures.
O c in the linear regression mode Y = b + cX is positive
O 90% of the variation of the ice-cream sales is due to the variance of the sales itself.

Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

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