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WHIR Togels The problems on this worksheet come from your book p 146 148 2 6 12 and 14 1 Driving Use your graphing calculator to make a scatter plot for this data set using gallons as the independent variable Identify the correlation and find the equation of the line of best fit Gallons Distance mi 11 2 338 Distance Traveled Mean Temperature F Heating Bill 9 8 296 10 6 332 10 1 324 Claire s Heating Bills 38 42 44 93 79 75 12 3 368 2 Home Economics Use the data relating the average temperature in a month to the heating bill at Claire s house that month 36 83 8 7 263 10 1 305 42 49 38 74 67 86 a Make a scatter plot using mean temperature as the independent variable b Find the correlation coefficient and the equation of the line of best fit Draw the line of best fit on your scatter plot c Predict the heating bill for a month in which the average temperature is 40 F How accurate do you think your prediction is 3 School Here are the number of teachers and the number of students at a randomly selected sample of high schools in a city Teachers and Students at Selected Schools Teachers 92 52 114 49 110 62 76 84 Students 1050 653 753 381 1312 813 496 910 a Make a scatter plot of the data using teachers as the independent variable b Find the correlation coefficient and the equation of the line of best fit Draw the line of best fit on your scatter plot c Predict the number of teachers in a high school that has 600 students How accurate do you think your prediction is

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