The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands): Cost 9 4 2 3 Number 85 |68 53 55 Find the value of the linear correlation coefficient r. 0.9703 0.235 0.246 0.708

Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. x 3 7 15 32 75 y 40 35 30 26 18 (a) Make a scatter diagram of the data and visualize the line you think best fits the data.  Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website.   (b) Would you say the correlation is low, moderate, or strong? positive or negative? strong and negative moderate and negative   strong and positive low and negative low and positive moderate and positive (c) Use a calculator to verify that Σx = 132, Σx2 = 6932, Σy = 149, Σy2 = 4725, and Σxy = 2997. Compute r. (Round your answer to three decimal places.)r =  As x increases, does the value of r imply that y should tend to increase or decrease? Explain. Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. Given our value of r, y should tend to…

The data below is 12 observations of Math SAT scores (x) and scores on Math placement test (y). Calculate the linear correlation coefficient, rr. Enter your answers to two decimal places. X Y 420 426 410 360 600 575 460 538 550 553 480 407 560 635 450 388 400 383 430 402 470 462 440 437 rr =

Find the value of the linear correlation coefficient r using the paired data below. 75 35 95 16 35 65 16 y 165 146 136 177 195 157 115 O0.109 O-0.078 O0214 O-0.086

Two statistically independent random have variances of Variables X and 0² and new ran- dom T variables Y 54 are + = 25. TWO defined by U = 3x + 4 Y V = 5X-2Y

The data below are the ages and annual pharmacy b ills (in dollars) of 9 randomly selected employees. Calculate the linear correlation coefficient.Age, x: 30, 33, 37, 40, 43, 45, 49, 53, 57Pharmacy bill ($), y: 119, 123, 126, 134, 145, 148, 151, 153, 155A. 0.890B. 0.908C. 0.998D. 0.960

Which scatter plot shown has a correlation coefficient, r, closest to 0?

Please help!

Answer

The data in the table is the number of absences for 7 students and their corresponding grade. Number of Absences    Grade0                                    5.51                                    52                                    4.53                                    3.55                                    37                                    2.58                                    2 Step 1 of 3:  Calculate the correlation coefficient, r. Round your answer to six decimal places.