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# A public school noticed a drop in enrollment the area

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A public school noticed a drop in enrollment. The area is growing so the drop was unexpected. The school should study possible explanatory variables. The response is . A test score can be predicted from the number of hours spent studying with Y = 17x + 15. To achieve a perfect score of 100, the student should study hours. definite learning participate negative pricing drop in enrollment 5

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The y-intercept for a regression equation with the mean of y as 3.5, the mean of x as  2.8, and the slope of 2 is  . The y-intercept is represented in the regression equation by  . R 2  close to  indicated all variability has been accounted for in the calculations. If the response is 10, what is the predictor for Y = -3x + 5? -5 -25 1.67 -1.67 The  of the regression equation will have the same sign as the correlation of  the regression. Given the regression equation for the response of the reaction time in minutes to the exposure to a chemical level is Y = 2.3x – 1.8, what is the reaction to a level of 1.8? 2.34 minutes 0.5 minutes 2 minutes -2.1 A 1.0 slope
2.78 minutes The slope of a regression equation with r = 0.85, standard deviation of the y values is 10, and  the standard deviation of the x values is 12 is  . The line of best-fit is the line that  the sum of the squared errors of prediction. 0.71 minimizes
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