Extra Credit Worksheet Name _____________________________ Period _____________ Scatter Plots, and Two Way Frequency tables Please print or copy this worksheet. Complete all answers and show any work you did to find your answers. The worksheet will be due by the latest on December 19th and 1pm. Good luck and enjoy your Christmas break! 1. Answer the following questions about the scatter plot shown below: a. What is the trend of the scatter plot? b. What is the slope of the line of best fit? c. What is the equation of the line of best fit? d. Estimate the correlation coefficient for the scatter plot. 2. Answer the following questions about the scatter plot shown below: a. What is the trend of the scatter plot? b. What is the slope of the line of best fit? c. What is the equation of the line of best fit? d. Estimate the correlation coefficient for the scatter plot. 3. Answer the following questions about the two way frequency tables shown below: Mr. G did a survey of what type of birthday parties students at Mater enjoy the most. The table below shows the results of the survey. Categories Bowling Dancing Ice Skating Totals Male 12 15 7 34 Female 8 20 3 31 Totals 20 35 10 65 a. What is the marginal frequency that one of Mr. G's prefers to go to a dance party? b. What is the conditional frequency that a male student prefers to go to a bowling party? c. What is the relative frequency that a female student prefers to go to a ice skating party? d. What is the relative frequency that a female students prefers to go to a dancing party? e. What is the conditional frequency that a male student prefers to go to a ice skating party? 4. Answer the following questions about the two way frequency table shown below: Mr. G did yet another survey at Mater to find out what subject students enjoy the most. The table below shows some of the results of the survey. Categories High School Middle School Totals Math Science 100 45 180 History 75 25 100 Totals 200 150 a. Fill in the remaining blanks in the tables using the information that is already given in the table. b. What is the conditional frequency that a high school student likes math the most? c. What is the relative frequency that a student is in middle school and likes science the most? d. What is the relative frequency that a student is in high school and likes history the most? e. What is the marginal frequency for students that like math the most? f. What is the conditional frequency that a middle school students like science the most?