Please answer the whole question  (2) Let x be the age of a licensed driver in years. Let y be the percentage of all fatal accidents (for a given age) due to failure to yield the right of way. For example, the first data pair states that 5% of all fatal accidents of 37-year-olds are due to failure to yield the right of way. x 37 47 57 67 77 87 y 5 8 10 15 27 44 Complete parts (a) through (e), given Σx = 372, Σy = 109, Σx2 = 24814, Σy2 = 3079, Σxy = 8043, and r ≈ 0.927. (a) Draw a scatter diagram displaying the data.  Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website.   (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx =   Σy =   Σx2 =   Σy2 =   Σxy =   r =   (c) Find x, and y. Then find the equation of the least-squares line  = a + bx. (Round your answers for x and y to two decimal places. Round your answers for a and b to three decimal places.) x =  y =    =  +  x

The following table shows the length, in centimeters, of the humerus and the total wingspan, in centimeters, of several pterosaurs, which are extinct flying reptiles. (A graphing calculator is recommended.) Pterosaur Data Humerus, x Wingspan, y Humerus, x Wingspan, y 27 576 32 589 33 605 35 745 25 559 24 552 23 472 22 461 18 411 17 410 1.5 36 1.4 30 1.3 29 0.9 28 0.8 24 (a) Find the equation of the least-squares regression line for the data. Round constants to the nearest hundredth. (b) Use the equation from part (a) to determine, to the nearest centimeter, the projected wingspan of a pterosaur if its humerus is 56 centimeters. cm

Suppose that a customer is purchasing a car. He conducts an experiment in which he puts 10 gallons of gas in the car and drives it until it runs out of gas. He conducts this experiment 15 times on each car and records the number of miles driven.   Full data set    Car 1 216 243 205 242 239 297 295 172 270 251 165 310 265 316 278   Car 2 231 220 223 205 245 257 242 292 248 252 287 255 250 293 251   Median for Car 2 M=___________mi​ / 10 gal ​(Type an integer or decimal rounded to one decimal place as​ needed.) Range for Car 1 R=__________mi​ / 10 gal ​(Type an integer or decimal rounded to one decimal place as​ needed.)   Range for Car 2 R=__________mi​ / 10 gal ​(Type an integer or decimal rounded to one decimal place as​ needed.) Sample standard deviation for Car 1 s=_________mi​ / 10 gal ​(Type an integer or decimal rounded to one decimal place as​ needed.)   Sample standard deviation…

Which of the following is a characteristic of quantitative data? A It focuses on subjective interpretations and opinions B It is collected through interviews and focus groups. C It can be easily represented using graphs and charts D) All of the above

2.) Explain why the relative frequency column of a frequency table might not sum to 1.0.

The independent variable in either a before/after t or a within subjects F is always of what data scale

Search and Rescue of DND provides various statistics on boating accidents in he Maritimes and B.C. These statistics include information on the wind speed at the time of the accident. The following chart includes information recorded for 184 accidents on both coasts for the same time period:               Wind Conditions        Accidents West Coast     Accidents East Coast             Nil                               13                                            6             Light                           74                                            42             Moderate                     30                                            15             Strong or higher          3                                              1 a) Suppose xe indicates the wind conditions in the East Coast where xe=0 indicates Nil, xe=1 indicates Light, xe = 2 indicates moderate and xe = 3 indicates Strong or Storm. Also suppose that xw indicates the wind conditions on the West Coast and xt indicates…

Sections a and b please

Please show your work

Following are some of the variables from a survey conducted by the U.S. Census Bureau. Which of the variables is quantitative? all of the above the number of people living in a household O the total household gross income O the ages of household residents.