Chapter 6 Checkpoint

Identify the response variable for the following relationship.

The amount of time studying for a statistics exam and the grade on the exam.

• The amount of time studying for a statistics exam

• The grade on the exam

• Both could be the response

• Both could be the explanatory

Identify the explanatory variable for the following relationship.

The amount of time studying for a statistics exam and the grade on the exam.

• The amount of time studying for a statistics exam

• The grade on the exam

• Both could be the response

• Both could be the explanatory

Identify the explanatory variable for the following relationship.

The number of texts and the number of calls for cell-phone users.

• The number of texts for cell-phone users

• Number of calls for cell-phone users

• Both could be the response

• Both could be the explanatory

Identify the response variable for the following relationship.

The number of texts and the number of calls for cell-phone users.

• The number of texts for cell-phone users

• Number of calls for cell-phone users

• Both could be the response

• Both could be the explanatory

Many people like to ride roller coasters. Amusement parks try to increase attendance by building exciting new coasters. The table displays data on several roller coasters that were opened in a recent year. Make a scatterplot to show the relationship between height and maximum speed.

What is the explanatory variable?

• Height of the roller coaster

• Maximum Speed of the roller coaster

• Both could be the explanatory

• There is no explanatory variable.

Many people like to ride roller coasters. Amusement parks try to increase attendance by building exciting new coasters. The table displays data on several roller coasters that were opened in a recent year. Make a scatterplot to show the relationship between height and maximum speed.

What is the response variable?

• Height of the roller coaster

• Maximum Speed of the roller coaster

• Both could be the explanatory

• There is no explanatory variable.

Many people like to ride roller coasters. Amusement parks try to increase attendance by building exciting new coasters. The table displays data on several roller coasters that were opened in a recent year. Make a scatterplot to show the relationship between height and maximum speed.

Which of the following is the scatterplot?

• 
• 
• You can't make a scatterplot for categorical variables.

Many people like to ride roller coasters. Amusement parks try to increase attendance by building exciting new coasters. The table displays data on several roller coasters that were opened in a recent year. Describe the relationship between the height and maximum speed of the roller coasters. Which of the following is the direction of the scatterplot?

• There is a positive association between height and maximum speed. Taller roller coasters tend to have a higher maximum speed and shorter roller coasters tend to have a lower maximum speed.

• There is a negative association between height and maximum speed. Taller roller coasters tend to have a higher maximum speed and shorter roller coasters tend to have a lower maximum speed.

• Taller roller coasters tend to have a lower maximum speed and shorter roller coasters tend to have a higher maximum speed.

• There is no direction.

Many people like to ride roller coasters. Amusement parks try to increase attendance by building exciting new coasters. The table displays data on several roller coasters that were opened in a recent year. Describe the relationship between the height and maximum speed of the roller coasters. Which of the following is the form of the scatterplot?

• There is a linear pattern in the scatterplot.

• There is a nonlinear pattern in the scatterplot.

• There is a exponential pattern in the scatterplot.

• There is no form.

Many people like to ride roller coasters. Amusement parks try to increase attendance by building exciting new coasters. The table displays data on several roller coasters that were opened in a recent year. Describe the relationship between the height and maximum speed of the roller coasters. Which of the following is the strength of the scatterplot?

• Because the points vary somewhat from the linear pattern, the association has moderate strength.

• Because the points vary a lot from the linear pattern, the association has weak strength.

• Because the points don't vary a lot from the linear pattern, the association has strong strength.

• There is no strength.