LC: Scatter Plots and Trend Lines
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Last updated almost 2 years ago
10 questions
Required
1
Jeremiah conducts a survey and finds that as the first variable in his survey decreases, the second variable increases.
What type of association is there between the two variables?
Jeremiah conducts a survey and finds that as the first variable in his survey decreases, the second variable increases.
What type of association is there between the two variables?
Required
1
Which is a true statement about the scatter plot shown?
Which is a true statement about the scatter plot shown?
The table below shows the number of chapters and the approximate number of pages in
several books.
Required
1
Use the data in the table to construct a scatter plot.
Use the data in the table to construct a scatter plot.
Required
1
Which is a true statement about the scatter plot you constructed?
Which is a true statement about the scatter plot you constructed?
Required
1
Which could likely be the variables represented in the scatter plot shown?
Which could likely be the variables represented in the scatter plot shown?
Required
1
Which is a reasonable prediction based on the scatter plot below?
Which is a reasonable prediction based on the scatter plot below?
Required
1
Which is the most reasonable value of x when y = 150?
Which is the most reasonable value of x when y = 150?
Required
1
Write an equation for the trend line in slope-intercept form.
Write an equation for the trend line in slope-intercept form.
A city manager made a scatter plot of the number of retail stores in the city over the years. The scatter plot had a trend line with an equation:
y = 11x + 12
Where y is the total number of retail stores and x is the number of years since 1990.
Use this information to answer the two questions to the right.
Required
1
Mark and his family moved to the city in 1997. Use the equation to predict the number of retail stores in the city in 1997.
Mark and his family moved to the city in 1997. Use the equation to predict the number of retail stores in the city in 1997.
Required
1
When Darryl and his family moved to the city, there were 133 retail stores. Use the equation to predict what year Darryl’s family moved to the city.
When Darryl and his family moved to the city, there were 133 retail stores. Use the equation to predict what year Darryl’s family moved to the city.