Extra Credit Worksheet Name Period ______ Scatter Plots, and Two

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?