1 of 31 of 3 Items
Question
Multiple Choice
What does it mean to say that a country’s land area is positively correlated with its population?
(1 point)
Responses
The larger the land area of a country, the higher its population tends to be.
The larger the land area of a country, the higher its population tends to be.
The smaller the land area of a country, the higher its population tends to be.
The smaller the land area of a country, the higher its population tends to be.
There is no relationship between a country’s land area and its population.
There is no relationship between a country’s land area and its population.
A larger land area automatically means a higher population.
A larger land area automatically means a higher population.
The correct response is:
The larger the land area of a country, the higher its population tends to be.
2 of 32 of 3 Items
Question
What is an outlier?
(1 point)
Responses
a data point that perfectly embodies the relationship between two variables
a data point that perfectly embodies the relationship between two variables
a data point that falls outside of a general trend on a graph
a data point that falls outside of a general trend on a graph
a way of determining how two variables are related to each other
a way of determining how two variables are related to each other
a data point that does not fit into a bar graph
The correct response is:
a data point that falls outside of a general trend on a graph
3 of 33 of 3 Items
Question
What is a trend line on a scatter plot?
(1 point)
Responses
a visual representation of the relationship between two variables
a visual representation of the relationship between two variables
a line connecting only the highest and lowest values on a graph
a line connecting only the highest and lowest values on a graph
a line connecting all of the data points on a scatter plot
a line connecting all of the data points on a scatter plot
any line of data on a graph
The correct response is:
a visual representation of the relationship between two variables