Algebra Lesson 3-6 Quiz v5

The screenshot shows a data table and a linear regression for the data. What type of correlation does the correlation coefficient indicate?

The screenshot below shows a linear regression. Write the equation for the line of best fit for the data. Round values to three significant figures.

Which of the following statements are true about a model with the following residual plot? Select all that apply.

An amature philatelist tracks the number of different stamps the US Postal Service has sold in each year of her life. She uses this data to predict how many new US stamps she will want to collect in the next upcomming years. This is an example of using a linear trend for the purposes of...

Questions 5-7 pertain to the following scenario:

The scatter plot graph below associates two measures for each year of data: (horizontally) the number of fresh lemons the US bought from Mexico, and (vertically) the total number of deaths on US highways that year.

True or False?
There is a correlation between lemon imports from Mexico and highway deaths.

True or False?
There is a significant causal connection between lemon imports from Mexico and highway deaths. That is, most of the changes in highway deaths can be (causally) explained by changes in the amount of lemons imported.

The screenshot shows a data table and a linear regression for the data. What type of correlation does the correlation coefficient indicate?

The screenshot below shows a linear regression. Write the equation for the line of best fit for the data. Round values to three significant figures.

Which of the following statements are true about a model with the following residual plot? Select all that apply.

An amature philatelist tracks the number of different stamps the US Postal Service has sold in each year of her life. She uses this data to predict how many new US stamps she will want to collect in the next upcomming years. This is an example of using a linear trend for the purposes of...

True or False?There is a correlation between lemon imports from Mexico and highway deaths.

True or False?There is a significant causal connection between lemon imports from Mexico and highway deaths. That is, most of the changes in highway deaths can be (causally) explained by changes in the amount of lemons imported.

This situation is an example of:

True or False?
There is a correlation between lemon imports from Mexico and highway deaths.

True or False?
There is a significant causal connection between lemon imports from Mexico and highway deaths. That is, most of the changes in highway deaths can be (causally) explained by changes in the amount of lemons imported.