7:18 PM Thu Aug 4 ... Take Quiz D Question 19 1 pts The following table lists the number of days that five houses had been up for sale, as well as their selling price Days (x) 45 12 3 17 32 20 11 45 Price(in $1000) (y) 650 387 401 506 692 276 420 742 Find the least-squares regression equation. Round each result to 3 decimal places. O y = 309.909x + 8.620 O y = 8.359x + 402.864 Ov = 8.620x + 309.909 Oy=-7.824x + 508.3797:18 PM Thu Aug 4 . . Take Quiz D Question 3 1 pts 7 pairs of data yield r = 0.942 and the regression equation y = 3.2x - 6.8 . Also, y = 18.2 . What is the best predicted value of y when x = 5 ? O 22.8 O 9.2 4.7 18.2 1 pts D Question 4Thu Aug 4 Take Quiz I-square distribution table can be opened under the Final Exam link. Time Ru ause during the exam. Attempt d 2 Hour eturn after submitted. d luck! Question 1 1 pts An exam consists of 44 multiple choice questions, each with five possible answers, only one of which is correct. If a student guesses on each question, what is the expected the number of correct answers? Assume that questions are independent to each other. Round the result to the nearest tenth. 1 pts Question 2 A city planner says, "The typical commute to work for someone living in the city limits is less than the commute to work for someone living in the suburbs." What does this statement mean? O There is less variation in the commute time of those living in the suburbs. O If you live in the city limits you will have a longer commute time