Two Variable Statistics

Front

What is a scatter plot?

Back

A scatter plot is a graph of plotted points that shows a relationship between two sets of data.

Front

What is the purpose of a line of best fit?

Back

A line of best fit is used to make predictions based on the data points in a scatter plot.

Front

How do you calculate relative frequency?

Back

Relative frequency is calculated by dividing the number of times an event occurs by the total number of observations.

Front

What does a relative frequency of 29% indicate?

Back

It indicates that 29% of the surveyed group falls into a specific category, such as boys who cannot bike to school.

Front

What percentage of SUVs are driven by women if the relative frequency is 86.5%?

Back

It means that 86.5% of the surveyed SUV drivers are women.

Front

How many male students were surveyed if the answer is 59?

Back

59 male students were surveyed.

Front

What is the definition of correlation in statistics?

Back

Correlation is a statistical measure that describes the extent to which two variables change together.

Front

What is the difference between a scatter plot and a line graph?

Back

A scatter plot shows individual data points, while a line graph connects data points with lines to show trends over time.

Front

What does it mean if two variables have a positive correlation?

Back

It means that as one variable increases, the other variable also tends to increase.

Front

What does it mean if two variables have a negative correlation?

Back

It means that as one variable increases, the other variable tends to decrease.