In March, Maggie collected the daily sales of ice-cream in Montreal (Y) and the outdoor temperature for each day (X) She
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In March, Maggie collected the daily sales of ice-cream in Montreal (Y) and the outdoor temperature for each day (X) She
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 +eX Which of the following statements is true? Only 10% of the variation of the ice cream sales is explained by different outdoor temperatures The related coefficient of determination is 0.1 All of the other answers are true 90% of the variation of the ice cream sales is due to the variance of the sales itself Oc in the linear regression mode Y-b+cX is positive
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