Complete the table with data showing the results of the examinations out of 100 taken by 9 students in Statistics class depicting either a positive or negative correlation. Exam 1 (x) 96 52 42 57 85 89 76 70 90 Exam 2 (y) 92 79 55 49 80 92 62 87 89 Using the following information above: Draw a scatter Draw a line of best fit and comment on the Work out the gradient of the line of best

The price (in Tk.) and demand (in kg) of a product is given in the following table: Price (Tk.) 25 37 40 45 48 50 55 70 Demand (kg) 10 8 9 7.5 4.5 3 2 a. Determine the coefficient of correlation between the two variables. Answer rounded to three decimal places. b. Determine the slope coefficient B1 for the regression of Demand on Price. Answer rounded to three decimal places. c. Determine the y-intercept Bo for the regression of Demand on Price. Answer rounded to two decimal places. d. What will be the demand when price is Tk. 52? Answer rounded to two decimal places. LO

The National Football League (NFL) records a variety of performance data for individuals and teams. To investigate the importance of passing on the percentage of games won by a team, the folloving data show the average number of passing yards per attempt (Yds/Att) and the percentage of games won (WinPct) for a random sample of 10 NFL teams for the 2011 season (NFL vwebsite). Team Yds/Att WinPct Arizona Cardinals 6.9 44 Atlanta Falcons 8.0 69 Carolina Panthers 5.3 19 Chicago Bears 8.3 75 Dallas Covboys 5.4 26 New England Patriots 7.1 54 Philadelphia Eagles 8.4 79 Seattle Seahavwks 8.4 80 St. Louis Rams 6.1 33 Tampa Bay Buccaneers 7.8 70 a. Choose the correct a scatter diagram with the number of passing yards per attempt on the horizontal axis and the percentage of games won on the vertical axis. A. В. Win Pct WinPct! 80- 80 70 70 60 60 50 50 40 40 30- 30 20 20 10- 10- 80- 80 70 70 60 60 50- 50 40 40 30 30 20 20 10- 10- 6. 8. 9. 8. Yds/Att Yds/Att b. What does the scatter diagram…

The data below was collected from manufacturer advertisements of their vehicles horsepower (x) and highway gas mileage (mpg=y). Use this data to answer the following questions. horsepower 146 250 340 350 390 190 220 mpg 33 28 15 17 11 35 42 1. Find the p-value to determine if there is a linear correlation between horsepower and highway gas mileage (mpg). Record the p-value below. Round to four decimal places.p-value==2. Is there a linear correlation between horsepower and highway gas mileage (mpg)?   3. If there is a linear correlation, write the correlation coefficient below. Otherwise, leave it blank. Round your final answer to four decimal places. Be careful with your sign.r=r= 4. If there is a linear correlation, write the regression equation below. Otherwise, leave it blank. Round all numbers to four decimal places.ˆy=y^=5. Using the data shown above, predict the the highway gas mileage (mpg) for a car that has a horsepower of 225. Round your final answer to two decimal…